Question about Texas Instruments TI-81 Calculator

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Posted on Jan 02, 2017

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The following examples will demonstrate how to
convert decimals into fractions using the TI-30Xa and TI-30Xa Solar.
Please be aware that TI-30Xa Solar School Edition calculators do not
have this functionality.

**Example**: Convert .25 to 1/4

- Input .25, press [2nd][<--] (says F<>D above it).

**** F<>D means fraction to decimal, decimal to fraction. **

**Example**: Convert 1.38 to 1_19/50

- Input 1.38, press [2nd][<--].

**Example**: Convert 9.75 to 9_3/4

- Input 9.75, press [2nd]{<--].

- Input .25, press [2nd][<--] (says F<>D above it).

- Input 1.38, press [2nd][<--].

- Input 9.75, press [2nd]{<--].

Mar 08, 2011 | Texas Instruments TI-30XA Calculator

I come up with 3. (81^(1/2))^(1/2)=3. the Simplest form. I used 81^(1/2) because, 81 looks like 81 to the first power, instead of a fraction.

Jan 14, 2011 | Texas Instruments TI-89 Calculator

TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on at all. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

Mar 16, 2010 | Texas Instruments TI-81 Calculator

Hello.

If your TI has a MATH button, select it.

Under Math, Function 1 is fractions and Function 2 is decimals

For example, 2/3 plus 2/3 ...

2 - / - 3 - + - 2 - / - 3 = 1.33333333

2nd - ANS - MATH - 1 = 4/3

Hope this helps.

If your TI has a MATH button, select it.

Under Math, Function 1 is fractions and Function 2 is decimals

For example, 2/3 plus 2/3 ...

2 - / - 3 - + - 2 - / - 3 = 1.33333333

2nd - ANS - MATH - 1 = 4/3

Hope this helps.

Feb 04, 2010 | Texas Instruments TI-81 Calculator

Unfortunately, the TI-81 doesn't have this capability built-in.

Oct 29, 2009 | Texas Instruments TI-81 Calculator

Unfortunately the TI-81, unlike later models, does not have this capability built-in. You'll have to find and load a program to do this.

Oct 23, 2009 | Texas Instruments TI-81 Calculator

To do fractions, input like this:

(1/3)+(4/9)

Granted the answer is a decimal... But you should be able to convert that to a fraction using what you've learned in math class.

PI sign: Just press [2nd]and then[^]. And voila, instant π! Exponent:enter more complicated expressions involving exponents using parentheses and the negative sign.

**For further guide read: http://www2.stetson.edu/~mhale/teach/ti83.htm and**
http://education.ti.com/educationportal/downloadcenter/SoftwareDetail.do?website=US&appId=6124&tabId=2

Please rate this!!

(1/3)+(4/9)

Granted the answer is a decimal... But you should be able to convert that to a fraction using what you've learned in math class.

PI sign: Just press [2nd]and then[^]. And voila, instant π! Exponent:enter more complicated expressions involving exponents using parentheses and the negative sign.

Please rate this!!

Aug 16, 2009 | Texas Instruments TI-81 Calculator

press [Math] [ENTER] [ENTER]

May 07, 2009 | Texas Instruments TI-81 Calculator

just type it in, e.g. 1/2 or 3/5.
if you want to have answers display as fractions, press [MATH] ENTER.

May 07, 2009 | Texas Instruments TI-83 Plus Calculator

Two ways:

1) hit the equal sign

2) hit 2nd and [d/c] (you can do this multiple times to see it as the most reduced improper fraction or as a mixed fraction)

1) hit the equal sign

2) hit 2nd and [d/c] (you can do this multiple times to see it as the most reduced improper fraction or as a mixed fraction)

Mar 01, 2009 | Texas Instruments TI-30XA Calculator

Sep 02, 2013 | Texas Instruments TI-81 Calculator

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