Question about The Learning Company Achieve! Math & Science Grades 1-3 (381933) for PC, Mac

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Posted on Jan 02, 2017

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Convert each mixed number (what you call mixed fraction) to an improper fraction, then multiply the two numerators and multiply the two denominators. Reduce the resulting fraction to its simplest form

Example

(2 1/3)*(1 5/7)=?

Convert 2 1/3 to an improper fraction 2 1/3=2+ 1/3 = 6/3+1/3=7/3

Convert 1 5/7 to an improper fraction 1 5/7=1+ 5/7 =7/7 +5/7=12/7

(2 1/3)*(1 5/7)= (7/3)*(12/7)= (7*12)/(3*7)

The 7's in the numerator and denominator cancel one another leaving

12/3=4

**(2 1/3)*(1 5/7)=4**

Not all products of mixed numbers will give a simple result as this one. More likely they will not.

Example

(2 1/3)*(1 5/7)=?

Convert 2 1/3 to an improper fraction 2 1/3=2+ 1/3 = 6/3+1/3=7/3

Convert 1 5/7 to an improper fraction 1 5/7=1+ 5/7 =7/7 +5/7=12/7

(2 1/3)*(1 5/7)= (7/3)*(12/7)= (7*12)/(3*7)

The 7's in the numerator and denominator cancel one another leaving

12/3=4

Not all products of mixed numbers will give a simple result as this one. More likely they will not.

Dec 12, 2013 | Computers & Internet

The product of any number and a positive fraction less than one is always less than the number. If both factors are less than one then the product is less than either factor.

Dec 02, 2013 | Mathsoft Computers & Internet

The key marked [a b/c], the one below the [X,Theta,T] and [7], allows you to enter fractions either as mixed numbers or improper fractions.

To enter the mixed number 3 4/7 you key in**3 [a b/c] 4 [a b/c] 7 [EXE]**

To convert this to an improper fraction press [SHIFT] [F--D].

Pressing the [F--D] key toggles between fraction and decimal representation.

To enter the mixed number 3 4/7 you key in

To convert this to an improper fraction press [SHIFT] [F--D].

Pressing the [F--D] key toggles between fraction and decimal representation.

Aug 02, 2013 | Casio FX9750GII Graphic Calculator

I will assume that your calculator is equipped with one of the later Operationg systems. (2.53 MP and later).

To be able to use the Math Print templates you must set the IO display to MATH.

To do so turn calculator ON, press the MODE key to display the configuration pages. Scroll down to reach Page 2. At the top of the page you have Math and Classic. Use left arrow key to highlight MATH and press ENTER to validate.

Afterwards, when you want to type in a fraction or a loagb function, etc. press the ALPHA key. You will see TABS at the bottom of the screen. Activate a TAB by pressing the Fx key that is below it (F1, F2, or F3). You can move from one TAB to the next by pressing the Left/Right navigational keys.

Assuming that you pressed the improper fraction key, you will see a template of a stacked fraction. Enter the numerator in the upper square and the denominator in the lower square. Press the enter key.

In the MODE configuration you can force the display to be mixed fraction or improper fraction. You can also force a decimal representation of fractions (as results of calculations).

To be able to use the Math Print templates you must set the IO display to MATH.

To do so turn calculator ON, press the MODE key to display the configuration pages. Scroll down to reach Page 2. At the top of the page you have Math and Classic. Use left arrow key to highlight MATH and press ENTER to validate.

Afterwards, when you want to type in a fraction or a loagb function, etc. press the ALPHA key. You will see TABS at the bottom of the screen. Activate a TAB by pressing the Fx key that is below it (F1, F2, or F3). You can move from one TAB to the next by pressing the Left/Right navigational keys.

Assuming that you pressed the improper fraction key, you will see a template of a stacked fraction. Enter the numerator in the upper square and the denominator in the lower square. Press the enter key.

In the MODE configuration you can force the display to be mixed fraction or improper fraction. You can also force a decimal representation of fractions (as results of calculations).

Dec 12, 2011 | Texas Instruments TI-84 Plus Calculator

The key marked [a b/c] has a shifted function marked [d/c]. That is the one you use to convert between fraction display formats.

Oct 26, 2011 | Texas Instruments TI-30XA Calculator

For negative numbers (not just exponents), make sure you use the (-) key just to the right of the decimal point key, not the - key for subtraction.

For what follows I'm going to assume you have at least version 2.53 of the operating system for the 84Plus. If you have an older version, I STRONGLY recommend you update it:

http://education.ti.com/educationportal/sites/US/productDetail/us_os_84plus.html

You can use the "n/d" command in the MATH/NUM menu to enter the division bar. For example, to enter 1/2, press 1 MATH right-arrow ALPHA [D] 2 ENTER. If you just want the number, you can also enter it as 1 / 2.

You can convert a decimal number to a fraction using the >Frac command in the MATH menu. For example, to convert 0.2 to a fraction, press . 2 MATH 1 ENTER.

For what follows I'm going to assume you have at least version 2.53 of the operating system for the 84Plus. If you have an older version, I STRONGLY recommend you update it:

http://education.ti.com/educationportal/sites/US/productDetail/us_os_84plus.html

You can use the "n/d" command in the MATH/NUM menu to enter the division bar. For example, to enter 1/2, press 1 MATH right-arrow ALPHA [D] 2 ENTER. If you just want the number, you can also enter it as 1 / 2.

You can convert a decimal number to a fraction using the >Frac command in the MATH menu. For example, to convert 0.2 to a fraction, press . 2 MATH 1 ENTER.

Mar 16, 2011 | Texas Instruments TI-84 Plus Silver...

Yes, there is a feature or, setting in the mode that will stop you from converting fractions. Go to the mode screen by pressing the [MODE] key. [Down arrow] 9 times and, highlight and select the n/d by pressing the [ENTER] key. Next, [Down arrow] 1 time and, highlight and select Frac by pressing [ENTER] key. Just escape or, quit out of the mode screen and, the calculator should now be set up to convert your fractions. Just remember to go back and, change the last setting you made when you go back to dealing with decimal numbers.

Jan 04, 2011 | Texas Instruments TI-84 Plus Calculator

To keep a fraction in fraction format (though reduced) you must enter the numerator, press the Division key, followed by a number (denominator).

If you press ENTER, the fraction will be displayed as a decimal number.

However if you use the sequence [MATH][1:ToFrac] peior to pressing [ENTER] the result will be the irreducible form pf the fraction you entered.

Obviously, if you enter an interger number there will not be any fraction display.

Also, if your "number down next to it" means after the [ToFrac], then it is clear that nothing will happen.

Try what I suggest and see if that works.

If you press ENTER, the fraction will be displayed as a decimal number.

However if you use the sequence [MATH][1:ToFrac] peior to pressing [ENTER] the result will be the irreducible form pf the fraction you entered.

Obviously, if you enter an interger number there will not be any fraction display.

Also, if your "number down next to it" means after the [ToFrac], then it is clear that nothing will happen.

Try what I suggest and see if that works.

Apr 16, 2010 | Texas Instruments TI-84 Plus Silver...

The primary key to enter something that resembles a fraction is the division key, the one above the multiplication key.

However, any division you enter yields a decimal number, unless the result is an integer.

To keep the result of a division as a (reduced) fraction use the [|=>Frac] or [ToFrac] command. It is accessible by the following key sequence

[MATH][1:ToFrac].

Insert it after the fraction, before pressing the [ENTER] key to get the result.

By pressing [MATH][2:ToDec] you convert a fraction in to a decimal number.

However, any division you enter yields a decimal number, unless the result is an integer.

To keep the result of a division as a (reduced) fraction use the [|=>Frac] or [ToFrac] command. It is accessible by the following key sequence

[MATH][1:ToFrac].

Insert it after the fraction, before pressing the [ENTER] key to get the result.

By pressing [MATH][2:ToDec] you convert a fraction in to a decimal number.

Apr 10, 2010 | Texas Instruments TI-83 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

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