Education Technology

Solution 12057: Fraction to Decimal Conversions on the TI-89 Family, TI-92 Family, and Voyage™ 200 Graphing Calculators.

How Do I Calculate Fraction to Decimal Conversions using the TI-89 family, TI-92 family, and Voyage 200 graphing calculators?

The TI-89 family, TI-92 family, and Voyage 200 do not have fraction conversion keys. However, conversions can still be performed on these calculators.

To convert a decimal number to a fraction:

1) Press [MODE].
2) Scroll down to Exact/Approx.
3) Choose Exact to convert to fraction form .
4) Input a decimal number and press [ENTER].

To convert a proper or improper fraction to a decimal:

1) Press [MODE].
2) Scroll to Exact/Approx.
3) Choose Approximate.
4) Input a fraction and press [ENTER].

For mixed numbers, the procedure is the same as for fractions. However, the mixed number has to be entered as a sum. For example, for two and three fourths, enter (2+3/4).

Please Note: To avoid changing the mode setting, enter the fraction and press [♦] [ENTER].

Please see the TI-89 family, TI-92 family and Voyage 200 guidebooks for additional information.