Question about Texas Instruments TI-85 Calculator

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Fractions multiplied by fraction to get fraction

I have a Texal Instrumen TI-85 calculator. I was wondering how to multiply fractions to get answers as fractions and not decimals???

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  • ttfn Sep 02, 2008

    I'm trying to solve fractions with my calculator but am not sure how to input them any suggestions?

  • Ray McGill Oct 07, 2008

    Yes, my daughter found same thing. I think using parens is a workaround, and then there is a function buried in math>misc somewhere.

  • Anonymous Mar 27, 2014

    cross multiply to find equal fraction, or the unknown factor

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In the CATALOG there is a >Frac command that can be used with parentheses to multiply fractions.
(1/2)(1/3)>Frac
1/6

Posted on Nov 25, 2008

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What is 3/4 multiplied by 3 1/3

Posted on Mar 02, 2015

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1 Answer

Convert decimal fraction to binary


None of these solutions answer his question. When converting a fraction or any number with decimal places to Binary, the TI-89 gives "Error: Domain error." For example, entering .6875 [2ND][MATH][BASE][BIN] does not work. I haven't found a way to do it with built in functions. In order to do these types of conversions, I use the following method.

Convert: 0.6875 to Binary
- left of decimal is a 0, so write down a 0, then a decimal point: (0.)
- multiply .6875 x 2 = 1.375 left of decimal is 1, write a 1: (0.1)
- drop the 1 and multiply .375 x 2 = .75 left of decimal is 0. write a 0: (0.10)
- multiply .75 x 2 = 1.5 left of decimal is 1, write a 1: (0.101)

- drop the 1, multiple .5 x 2 = 1. left of decimal is 1, write a 1: (0.1011).
- since there is no more fraction, the final answer is (0.1011). Hope this helps.

Jan 27, 2012 | Texas Instruments TI-89 Calculator

2 Answers

How many tenths there are in 11/2?


Just convert the 1 and 1/2 to a fraction and then multiply the top and bottom (numerator and denominator) by 5 to see that fraction in tenths.

Multiplying both the numerator and the demominator of a fraction by the same number does not change the value of the fraction.

1 1/2 is the same as 3 / 2

Now multiply both top and bottom by 5.

3 / 2 = 15 / 10


Therefore there are 15 tenths in 1 1/2.

Good luck I hope this helps.

Joe.

Sep 17, 2011 | Office Equipment & Supplies

1 Answer

Hi i have a TI-34-II and i need someone to tel me how to change a fraction into a percent and how to chance a fraction into a decimal. please help!!


One can express percentages as fractions. Say you have 60% and you want to change this into a fraction. you can also express this as 60/100 because all percentages are are parts of 100. So to change a fraction into a percent you would just convert the fraction into a decimal by dividing (3/4 = .75). Then to get the percentage you just multiply the decimal by 100 to get the percent. (75x100=75%

May 02, 2011 | Texas Instruments TI-34II Explorer Plus...

1 Answer

How do i multiply fractions on texas instrument TI-83 calculator


The division sign acts like a fraction on the ti-83; to multiply two fractions you may want to wrap them both in parenthesis to get the order of operations correct.
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Sep 24, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

Convert


Transforming 0.175 to fraction:
= 175/1,000
Reduce to lowest term (divide by 5 both the numerator and the denominator):
= 35/200
Reduce further by dividing both by 5:
= 7/40
This is the lowest terms now that it can't be reduced further.

The "Other" way round, Bottom number into ONE and multiply it by the Top. EG: 3/4 == 1 divided by 4 = 0.25, now we multiply, .25 by the Top number or in this case 3, that equals 0.75. 1/4 =0.25 x 3 = .75. 3/4 is the same as 0.75.

Feb 22, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

How to us a fraction on the ti-83 calculator? I have home work due on this tues. and i dont know how to put a fraction in on this 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.




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

2 Answers

I need to convert decimals to fractions


Hello,
Press [MATH][1:ToFrac] to convert an aswer to fraction.
If you enter 18.52[ToFrac] [ENTER gives 463/25

[MATH][2:ToDEC] converts a fraction to a decimal number.
Hope it helps.

Sep 22, 2009 | Texas Instruments TI-84 Plus Silver...

2 Answers

Problems with fractions on the Casio fx-115es


Hello,
To convert fractions to decimals or decimals to fractions, you use the [S<->D] key. Each time you press the key the result is displayed in the other format.
Alternatively, If you multiply or divide two integer numbers put a decimal mark at the end of one of the numbers (any one). The result will be displayed in decimal format.

Hope it helps.

Jun 01, 2009 | Casio FX-115ES Scientific Calculator

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