Question about Texas Instruments MathMate TI-7 Calculator

Ad

Hi,

a 6ya expert can help you resolve that issue over the phone in a minute or two.

best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).

click here to download the app (for users in the US for now) and get all the help you need.

goodluck!

Posted on Jan 02, 2017

Ad

The formula for 45 degree bends is offset" x 1.414 equals the travel distance in inches. Example: to calculate the offset of a line 6 1/4", in other words move the line over. Turm 1/4 into decimal form (1 divided by 4=.25). Calculate: (6.25 x 1.414= 8.8375). To convert the decimal form of .8375 to a fraction multiply it by 16 (16/16=1") example: .8375 x 16=13.4 , 13 is the numerator, 16 is the denominator which gives you a fraction of 13/16". That gives you your travel distance center to center of a 6 1/4" offset= 8 13/16" travel distance. For accuracy in your measurement, you must subtract the fitting allowance (how much space the fittings take up in the measurement) from your overall travel distance. It sounds like a lot of steps, but using this formula gives you dead on accuracy in pipe fitting. If you know your travel distance and wish to find the offset, multiply x .707. Hope this helps.

Feb 12, 2015 | Plumbing

There is not much that can be done to figure out how to write 0.9676244435451234 as a fraction, except to literally use what the decimal portion of your number, the .9676244435451234, means.

Since there are 16 digits in 9676244435451234, the very last digit is the "10000000000000000th" decimal place.

So we can just say that .9676244435451234 is the same as 9676244435451234/10000000000000000.

We can reduce this fraction to lowest

terms by dividing both the numerator and denominator by -2.14748e+09.

Why divide by -2.14748e+09? -2.14748e+09 is the **Greatest Common Divisor (GCD)**

or **Greatest Common Factor (GCF)** of the numbers 9.67624e+15 and 1e+16.

So, this fraction reduced to lowest terms is

Jul 27, 2011 | Office Equipment & Supplies

Decimal to fraction:
Type in your decimal (i.e. .5)
Then press [MATH] > press [ENTER] on [>FRAC]
Then press [ENTER] again
Example:
.5>Frac
1/2
For a fraction to decimal:
Simply type in the fraction and press [ENTER]
Example:
1/3
.33333333333
(*Note that the decimal value is truncated to fit the screen)

Hope that helps! Have fun calculating!

Hope that helps! Have fun calculating!

May 03, 2011 | Texas Instruments TI-84 Plus Calculator

A fraction is just a division of two integers. Enter numerator, then press the division key and then the denominator.

If you press ENTER at this time your fraction will be calculated and displayed as a decimal number.

To keep it in fraction form you must press [MATH][1:>Frac]. The result will be a fraction but reduced to its simplest terms (an irreducible fraction).

27 [/] 48 [MATH][1:>Frac][ENTER] gives 9/16

If you press ENTER at this time your fraction will be calculated and displayed as a decimal number.

To keep it in fraction form you must press [MATH][1:>Frac]. The result will be a fraction but reduced to its simplest terms (an irreducible fraction).

27 [/] 48 [MATH][1:>Frac][ENTER] gives 9/16

Aug 17, 2010 | Texas Instruments TI-83 Plus Calculator

A fraction is in fact a ratio of two number: a division of a numerator by a denominator. The key used for the division operation is the one above the multiplication sign and below the caret [^], and in thee rightmost column of keys.

Beware that this calculator converts any ratio of two numbers into a decimal value. To keep a fraction in a fraction form you must use the [|=>Frac] or [ToFrac] command. To convert a decimal result to a fraction, use the [|=>Dec] command.

These commands are accessible through the CATALOG or more easily by pressing [MATH] (under the ALPHA key) and selecting [1:|=>Frac], or [2:|=>Dec]

Ex: to keep 27/48 in fraction form you enter

27 [/] 48 [MATH][1:|=>Frac] [ENTER]. Result is 9/16

You will notice that the resulting fraction is reduced to its simplest form.

To convert the above result from fraction to decimal press [MATH][2:|=>Dec]

A fraction can always be approximated by a decimal value but the converse is not always possible.

Beware that this calculator converts any ratio of two numbers into a decimal value. To keep a fraction in a fraction form you must use the [|=>Frac] or [ToFrac] command. To convert a decimal result to a fraction, use the [|=>Dec] command.

These commands are accessible through the CATALOG or more easily by pressing [MATH] (under the ALPHA key) and selecting [1:|=>Frac], or [2:|=>Dec]

Ex: to keep 27/48 in fraction form you enter

27 [/] 48 [MATH][1:|=>Frac] [ENTER]. Result is 9/16

You will notice that the resulting fraction is reduced to its simplest form.

To convert the above result from fraction to decimal press [MATH][2:|=>Dec]

A fraction can always be approximated by a decimal value but the converse is not always possible.

Jan 23, 2010 | Texas Instruments TI-84 Plus Calculator

Hello,

Ther e is no dedicated key to do that but ther is a command ToFrac noted as ->Frac. To access it use [MATH[1:->Frac].

Two ways of using the command.

1. You want to reduce a fraction to its simplest expression

27/48 [MATH][1:->Frac] [ENTER] gives the reduced fraction 9/16

2 You do not want your results converted to decimal numbers

(27/48) [x] (5/7) [MATH][1:->Frac][ENTER] multiplies the two fractions and gives a fraction as a result. 45/112

3. Your result is in decimal form and you want to cast it into a fraction. The conversion will be exact only for certain numbers. Results kept in fraction forms are more accurate than those represented as decimals.

Hope it answers your question.

Ther e is no dedicated key to do that but ther is a command ToFrac noted as ->Frac. To access it use [MATH[1:->Frac].

Two ways of using the command.

1. You want to reduce a fraction to its simplest expression

27/48 [MATH][1:->Frac] [ENTER] gives the reduced fraction 9/16

2 You do not want your results converted to decimal numbers

(27/48) [x] (5/7) [MATH][1:->Frac][ENTER] multiplies the two fractions and gives a fraction as a result. 45/112

3. Your result is in decimal form and you want to cast it into a fraction. The conversion will be exact only for certain numbers. Results kept in fraction forms are more accurate than those represented as decimals.

Hope it answers your question.

Oct 10, 2009 | Texas Instruments TI-83 Plus Calculator

Hello,

Yes it can do fractions although it does not have a specific key.

If you want to enter a fraction and keep it in fraction form, though reduced to its simplest expression use [MATH][1:->Frac] [ENTER]

Exemple:

27/48 [MATH][1:->Frac][ENTER] displays the reduced form 9/16.

To convert a decimal number into a fraction (with the inherent loss of precision) press [MAT][1:->Frac][ENTER]

Use [MAT][2:->Dec] to convert to decimal, but this is done by default.

Hope it helps.

Yes it can do fractions although it does not have a specific key.

If you want to enter a fraction and keep it in fraction form, though reduced to its simplest expression use [MATH][1:->Frac] [ENTER]

Exemple:

27/48 [MATH][1:->Frac][ENTER] displays the reduced form 9/16.

To convert a decimal number into a fraction (with the inherent loss of precision) press [MAT][1:->Frac][ENTER]

Use [MAT][2:->Dec] to convert to decimal, but this is done by default.

Hope it helps.

Oct 05, 2009 | Texas Instruments TI-84 Plus Calculator

Step 1: Find a number you can multiply by **the bottom of the fraction** to make it 10, or 100, or 1000, or any 1 followed by 0s.
Step 2: Multiply both top and bottom by that number.
Step 3. Then write down just the top number, putting the decimal place in the correct spot (one space
from the right for every zero in the bottom number)
Example 1: Express 3/4 as a Decimal
Step 1: We can mulitply 4 by 25 to become 100

Step 2: Multiply top and bottom by 25:

**×25**
**3**
** = **
**75**

**4**
**100**
**×25**
Step 3: Write down 75 with the decimal place 2 spaces from the right (because 100 has 2 zeros);

Answer = 0.75

Example 2: Express 3/16 as a Decimal Step 1: We have to mulitply 16 by**625** to become 10,000

Step 2: Multiply top and bottom by 625:

**×625**
**3**
** = **
**1,875**

**16**
**10,000**
**×625**
Step 3: Write down 1875 with the decimal place 4 spaces from the right (because 10,000 has 4 zeros);

Answer = 0.1875

Example 2: Express 1/3 as a Decimal Step 1: There is no way to multiply 3 to become 10 or 100 or any power of 10, but we can calculate an**approximate** decimal by choosing
to multiply by, say, 333

Step 2: Multiply top and bottom by 333:

**×333**
**1**
** = **
**333**

**3**
**999**
**×333**
Step 3: Now, 999 is *nearly* 1,000, so let us write down 333 with the decimal place 3 spaces from the right (because 1,000 has 3 zeros):

Answer = 0.333 (accurate to only 3 decimal places !

Step 2: Multiply top and bottom by 25:

Answer = 0.75

Example 2: Express 3/16 as a Decimal Step 1: We have to mulitply 16 by

Step 2: Multiply top and bottom by 625:

Answer = 0.1875

Example 2: Express 1/3 as a Decimal Step 1: There is no way to multiply 3 to become 10 or 100 or any power of 10, but we can calculate an

Step 2: Multiply top and bottom by 333:

Answer = 0.333 (accurate to only 3 decimal places !

Sep 22, 2009 | Black & Decker Juicers

Place both the base and the exponent in parentheses

(3/4)^(-2) then press enter. Your answer will be in decimal form at first 1.777...

Press MATH

Select the 1: Fraction option and it will convert your decimal value to the fraction answer of 16/9.

Negative exponents flip the fraction. For instance, (3/4)^(-1) = 4/3. So for (3/4)^(-2) you could just square the numerator and denominator separately to get 9/16, and then flip the fraction to account for the negative. That will give you 16/9.

(3/4)^(-2) then press enter. Your answer will be in decimal form at first 1.777...

Press MATH

Select the 1: Fraction option and it will convert your decimal value to the fraction answer of 16/9.

Negative exponents flip the fraction. For instance, (3/4)^(-1) = 4/3. So for (3/4)^(-2) you could just square the numerator and denominator separately to get 9/16, and then flip the fraction to account for the negative. That will give you 16/9.

Jul 24, 2009 | Texas Instruments TI-83 Plus Calculator

Enter the fraction for example: enter 8/12.

The answer will be .666666

Then click Math (which is located under the Alpha button).

Click the ->Frac button (the first one).

It should come up as Ans->Frac.

Click Enter.

It should now read 2/3 which is 8/12 reduced.

Note: I have a TI-84 Plus Silver Edition, and the TI-84 Plus might not have this function, but that is how I do it on my TI-84 Plus Silver Edition

The answer will be .666666

Then click Math (which is located under the Alpha button).

Click the ->Frac button (the first one).

It should come up as Ans->Frac.

Click Enter.

It should now read 2/3 which is 8/12 reduced.

Note: I have a TI-84 Plus Silver Edition, and the TI-84 Plus might not have this function, but that is how I do it on my TI-84 Plus Silver Edition

Nov 08, 2008 | Office Equipment & Supplies

41 people viewed this question

Usually answered in minutes!

×