6th Grade Math Textbook, Progress

(Marvins-Underground-K-12) #1

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 $1.13

p$1.13

Leroy 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.

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