Manipulate Matrix Output (TI84+)

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To manipulate two matrices for solving a system of linear equations and save the output values, one can multiply a matrix by the inverse of another. The output is typically in decimal form, but to convert these values into fraction form, the ->Frac function can be utilized, found in the Math menu. However, this function may not work for irrational numbers and may have limitations with certain rational numbers. To save the output values, it is suggested to store them in another matrix variable, although practical testing on specific calculators may be limited. The challenge lies in saving the output to apply the fraction conversion function to each value effectively.
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When I manipulate two matrices by taking one and multiplying by the inverse of the other to solve a system of linear equations, how do I save the values of the output?

for example, the output i got for each variable was in decimal form, and i wanted to change each into fraction form.
 
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If you want to change the output into a fraction, I believe there is a function which can be found in the Math menu (I think it is the first option) which looks something like ->Frac. This function obviously won't work for irrational numbers, and it's possible that it doesn't always work for rational numbers. I haven't used it in a while since I got my TI 89Ti.

If you want to save the values, you could probably try storing them in another matrix variable, but I can't really test this out on a calculator right now since I don't have an 84+ anymore.
 
i know how to use the ->frac function. i just don't know how to save the output to run the function on each value.
 

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