Question about Texas Instruments TI-89 Calculator

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Fraction problem My calculator won't solve my fractions. For example I will put in 1/2 and my answer will be 1/2 instead of .5. It answers my fractions with the lowest possible fraction instead of decimals..how do I fix this?

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Follow the following sequence of steps
mode>exact/approx and then select approx

Posted on Jun 17, 2008

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Posted on Jan 02, 2017

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1 Answer

How do I get the TI-85 to convert an improper fraction to a mixed number?


Hi,

To do this on any calculator, enter the numerator and denominator of your mixed fraction, with a divide in between. I get 1.4. Next, take the decimal into a fraction and reduce it to lowest terms. In this case, 0.4 converts to 4/10 which reduces to 2/5. Putting the two pieces together, we get 1 and 2/5.

Good luck.

Paul

Jun 24, 2015 | Office Equipment & Supplies

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My ti-83 stop changing decimals to fraction


The Frac command only works if the number can be expressed as a fraction with no more than three digits in the denominator. Since the square root of 5/9 is an irrational number, it cannot be expressed as a fraction at all. The calculator is telling you that the value cannot be adequately approximated as a fraction with three or fewer digits in the denominator.

Jan 14, 2013 | Texas Instruments TI-83 Plus Calculator

1 Answer

My ti-83 stop changing decimals to fraction


The Frac command only works if the number can be expressed as a fraction with no more than three digits in the denominator. Since the square root of 5/9 is an irrational number, it cannot be expressed as a fraction at all. The calculator is telling you that the value cannot be adequately approximated as a fraction with three or fewer digits in the denominator.

Jan 14, 2013 | Texas Instruments TI-83 Plus Calculator

1 Answer

My TI 84 won't convert my imaginary numbers to fractions. I typed in 1/(1+i) and it won't convert the answer to fraction form. It keeps saying Error Data Type


The TI-84 works with real fractions. It will not convert complex numbers to fractions.

You can convert the real and imaginary components to fractions separately. For your example, 1/(1+i) is .5-.5i. Converting .5 and -.5 to fractions, you get 1/2 + (1/2)i.

Sep 15, 2011 | Texas Instruments TI-84 Plus Calculator

2 Answers

When I type 12!/5!7! I'm getting 2.01180672e10. My answer is suppose to be 792. Please help.


Somehow you're calculating 12!/(5!/7!).

Press 1 2 MATH left-arrow 4 / 5 MATH left-arrow 4 / 7 MATH left-arrow 4 ENTER to calculate the desired value. Alternatively, you can press 1 2 MATH left-arrow 3 5 ENTER or 1 2 MATH left-arrow 3 7 ENTER to calculate the same thing.

Aug 10, 2011 | Texas Instruments TI-83 Plus Calculator

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How to fraction. where is the fraction key


This calculator is incapable of displaying simplified fractions (i.e. 1 ½), you will have to use the decimal value or contain your complex fraction in parenthesis. (i.e. (5/2).)

Mar 01, 2011 | Texas Instruments BA-II Plus Calculator

1 Answer

When I divide the answer is in fraction form not decimal form how do i get it back


There are two options.

1) Whenever you want the answer in decimal form, place a decimal after at least one of the numbers.
For example: instead of using (1/2) use (1/2.)

2) Press the "Mode" button. Scroll down the list that appears until you find "Exact/Approx". If you set it to "Approximate", then it will always give the answer in decimal form. If you set it to "Exact", it will give the answer in fraction form.

Nov 12, 2009 | Texas Instruments TI-89 Calculator

2 Answers

Changing decimals to fractions


You can always convert a fraction to a decimal. The reverse may not always be possible. Look at the example on the screen capture.

You may be lucky and recover a fraction you have just converted into decimal format, but you cannot just write 0.333333333333 and expect the calculator to convert it to 1/3: The true fraction 1/3 has an infinite number of 3's after the decimal mark.
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Jan 06, 2009 | Casio FX-260 Calculator

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