Question about Texas Instruments TI-30 XIIS Calculator

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Texas Instruments calculator TI-30XIIS

My son has the above calculator (7th grade) and he is having problems simplifying fractions. He said in school they use a calculator that has a Simp button. Does this make sense and can you help us?

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Theres an A b/c button. Pretend its 90/100 Do 90 then press A b/c then type 100 and =.


Posted on Nov 20, 2008

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I don't know how to simplify fractions on this calculator.


You do not simplify fractions on the calculator. If the calculator is able to display fraction results, be sure that the form it gives you is the simplest. If the fraction is a mixed one there is usually a key to switch from mixed to improper, and from improper to mixed the keys are [a b/c] and [d/c]

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How do I convert from decimals to fraction with my TI-30X IIS calculator? I need the step by step process


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]{<--].

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On a TI-30XA the EE key is just above the 7 key.

On a TI-30XIIS the EE is the shifted function of the key just above the 7 key.

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How do you convert decimals to fractions?


With the decimal value on the screen, press 2nd F<>D.

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This function is FIX or FSE near the dot [.] or above it, so press [2nd] the the [FIX] where it located button [.] for example then the dot [.] him self: [2nd] [FIX] [.]
Rate me, thanks.

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