Calculator User Manual

3-6 Fractions
8003ENG.DOC TI-80, Chp 3, ENG, 135x205mm Bob Fedorisko Revised: 02/15/01 9:52 AM Printed: 02/15/01
9:53 AM Page 6 of 10
The TI
.
80 lets you enter fractions directly from the keyboard.
A simple fraction is a fraction with no whole-number part; for
example,
3
à
4
or
4
à
3
.
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
2
2 _
3
to enter
2
à
3
.
A mixed fraction is fraction that has both a whole-number and
a fractional part; for example
1
1
à
3
.
To enter a mixed fraction:
1. Enter the units (up to three digits), and then press
2
¥
.
2. Enter the numerator (up to three digits), and then press
2 _
.
3. Enter the denominator (up to and including 1000).
For example, press
5
2 ¥
2
2 _
3
to enter
5
2
à
3
.
Entering and Using Fractions in Calculations
Entering Simple
Fractions
Entering Mixed
Fractions