None of these solutions answer his question. When converting a fraction or any number with decimal places to Binary, the TI-89 gives "Error: Domain error." For example, entering .6875 [2ND][MATH][BASE][BIN] does not work. I haven't found a way to do it with built in functions. In order to do these types of conversions, I use the following method.
Convert: 0.6875 to Binary
- left of decimal is a 0, so write down a 0, then a decimal point: (0.)
- multiply .6875 x 2 = 1.375 left of decimal is 1, write a 1: (0.1)
- drop the 1 and multiply .375 x 2 = .75 left of decimal is 0. write a 0: (0.10)
- multiply .75 x 2 = 1.5 left of decimal is 1, write a 1: (0.101)
- drop the 1, multiple .5 x 2 = 1. left of decimal is 1, write a 1: (0.1011).
- since there is no more fraction, the final answer is (0.1011). Hope this helps.
SOURCE: fractions appear when I divide; not decimals
press 'yellow key' then press 'enter' to see answers in decimal format instead of fractions
SOURCE: I need to convert decimals to fractions
Hello,
Press [MATH][1:ToFrac] to convert an aswer to fraction.
If you enter 18.52[ToFrac] [ENTER gives 463/25
[MATH][2:ToDEC] converts a fraction to a decimal number.
Hope it helps.
SOURCE: Is answering in fractions, and I'd like decimals.
what you do is click on the 'mode' button and go down to the 'Exact/Approximate' parameter and choose Approximate. hit enter and you're good.
SOURCE: decimals to fractions
Hello,
Use the [2nd][MATH] keys. Scroll right [F6] to the softmenu [->Frac or To Frac].
Hope it helps.
SOURCE: TI-89 decimal to fraction
Here is what you do:
1) Press the Mode button.
2) Scroll down the list that appears until you find "Exact/Approx".
3) Change the setting for "Exact/Approx" to Exact.
4) Press enter to save the settings change.
You have three possible settings for "Exact/Approx":
1) Auto - The calculator will try to determine the best format.
2) Exact - The calculator will always give the answer in fraction form.
3) Approximate - The calculator will always give the answer in decimal form.
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