Entering And Using Fractions In Calculations - Texas Instruments TI-80 Manual Book

Entering and Using Fractions in Calculations

The TI.80 lets you enter fractions directly from the keyboard.
Entering Simple
Fractions
Entering Mixed
Fractions
3-6 Fractions
A simple fraction is a fraction with no whole-number part; for
example, or
3à4 4à3
To enter a simple fraction:
1. Enter the numerator (up to six digits), and then press 2
_.
2. Enter the denominator (up to and including 1000).
For example, press
A mixed fraction is fraction that has both a whole-number and
a fractional part; for example
To enter a mixed fraction:
1. Enter the units (up to three digits), and then press
¥.
2. Enter the numerator (up to three digits), and then press
2 _.
3. Enter the denominator (up to and including 1000).
For example, press
.
2 _
to enter
2 3
1 .
1à3
2 _
5 2 ¥ 2
.
2à3
2
3 to enter 5 .
2à3