Texas Instruments TI-15 Teachers Manual page 86

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:
P r e s s
5  3 ž
4 ®
Ÿ
Ÿ
Continue to compare as fractions:
5 r 72 ®
Ÿ
© 2000 T I
EXAS NSTRUMENTS
D i s p l a y
3
5
=
ííí
4
5 Ù 7 2 Ú
I
NCORPORATED
Numerator Key
Denominator Key
3
5
ííí
4
5 Ù 7 5
N n
&
D d
7 5
5 íííííí
1 0 0
5 Ù 7 2
N n
&
D d
7 2
5
ííííí
1 0 0
TI-15: A Guide for Teachers
ž
¥
79