Texas Instruments TI-15 Teachers Guide

© 2000 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-15: A Guide for Teachers
79
Comparing fractions and decimals
Linda swims 20 laps in 5.72
minutes. Juan swims 20 laps in 5¾
minutes. Who swims faster?
Compare the time as decimals and
fractions.
To compare the times as decimals:
Numerator Key

Denominator Key
¥
Press Display
5

3

4
®
33
44
Ÿ
5Ù75
Ÿ
N
D
&
n
d
75
100
Continue to compare as fractions:
5
r
72
®
5Ù72Ú 5Ù72
Ÿ
N
D
&
n
d
72
100
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5
5
5
5
=
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Texas Instruments TI-15 Specifications

General

Brand	Texas Instruments
Model	TI-15
Category	Calculator
Language	English