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Math Help - Converting a Decimal to a fraction on TI - nspire CAS

  1. #1
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    Exclamation Converting a Decimal to a fraction on TI - nspire CAS

    I have been wondering if there is any known way of converitng a decimal number into its exact fractional (possibly a word) value

    i know you can type:

    ctrl -> / and get a fraction and then input values, then ctrl enter to get a decimal, i was wondering if there was a way to reverse this so you can type in:

    1.5 and get (from an unknown comand/s) 3/2

    any help would be greatly apreichieeeeeeeated XD
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  2. #2
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    Mar 2010
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    fractions

    in TI-nspire CAS, you can set the document settings to either auto, exact, or approximate. If it's set on either exact or auto, when you enter 1.5, it should give you 3/2 automatically. However, if it is set on approximate, or if for some reason auto is not doing it for you, then you can enter the following:
    exact(1.5)

    *to change the document settings, click ctrl-tools>file>document settings

    I hope this helps.
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