User manual

© 1999 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
TI-30X ÙS: A Guide for Teachers
55
Sam is making his birthday cake.
The recipe calls for 3
1
/
2
cups of
flour. He has only a
1
/
2
-cup
measuring cup. To find out how
many times Sam must use his
measuring cup, change the mixed
number to a fraction.
3
1
/
2
¾
1
/
2
= 7
%
š
Press Display
3 N 1 N 2
33®11®22
DEG
%
š
33®11®22
¾¾
AA
bb
//
cc
½½ ¾¾
dd
//
ee
DEG
<
33®11®22
¾¾
AA
bb
//
c c
½½ ¾¾
dd
//
ee
'
7 / 27 / 2
DEG
Show the mixed number again.
%
š
<
AnsAns
¾¾
AA
bb
//
cc
½½ ¾¾
dd
//
e e
'
33
−
1/2 1/2
DEG
Mixed Number to Fraction, Fraction to
Mixed Number