Fractions with Money
8-10
A package of copier paper costs $1.50.
Leroy bought a package for ^34 of the cost.
How much did Leroy pay?To determine how much Leroy paid, p,
find:
3
4 of $1.50p.First estimate:
3
4 of $1.50 3
4 of $1.60^14 of $1.60$.40, so ^34 of $1.60$1.20.Then compute.^34 of $1.50^34 $1.50^34 of $1.50^34 $1 1 .50
^3
4
of $1.50^3
4 $1
1
.50 $4
4.50
^3
4
of $1.50^3
4 $1
1
.50 $1.13p$1.13Leroy paid $1.13.Study this example.
Divide: $8.75 1
1
4 d.$8.75 1 ^14 $8 1 .75^54 $8 1 .75^45
$1.75
$8.75 1 ^14 $8 1 .75^54 $8 1 .75^45 $7 1 .00$7.00
1
d$7.00$1.125$1.13
4 $ 4 .5 0 0 Round to the
nearest cent.Rename as fractions.Multiply by the
reciprocal.Remember: “of” means “times.”Think
$1.13 is close to the estimate of $1.20.8206-2_268-269 10/7/07 11:35 AM Page 268