Getting Started: Working With Fractions; 3-2 Fractions - Texas Instruments TI-80 Manual Book

Getting Started: Working with Fractions

Getting Started is a fast-paced introduction. Read the chapter for details.
Enter the expression 1
and then use the conversion options on the FRACTION menu to convert the
result.
This example is performed in
mode is especially useful for students when they are learning fraction concepts.
When MANSIMP mode is selected, the
menu) can be used to simplify fractions step-by-step.
1. Select MANSIMP
2. From the Home screen, press
« 2 ¥
27 1
fraction expression,
3. Press ¸ to evaluate the expression. The
indicates that the fraction can be simplified.
4. Press J
to select
1
is copied to the cursor location.
5. Press ¸ to simplify the fraction.
In MANSIMP mode, the TI-80 uses the lowest
common factor for simplification. The simplification
factor is displayed. The
indicates that the fraction can be simplified further.
Continue pressing ¸ until
displayed.

3-2 Fractions

+ 1 Evaluate the expression, simplify the result,
6/27 1/9.
MANSIMP
úSIMP
mode.
2 ¥
1
2 _
1 9 to enter the mixed-
1 + 1 .
6/27 1/9
úSIMP ( simplify).
ï
preceding the result
ï is no longer
(manual simplification) mode.
function (from the
2 _
6
ï
ANSúSIMP
MANSIMP
FRACTION