CPM Homework Help : ACC7 Problem 10-15

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Home > ACC7 > Chapter 10 Unit 11 > Lesson CC3: 10.1.1 > Problem 10-15

10-15.

Change each number below from a decimal to an equivalent fraction. For help with repeating decimals, review the Math Notes box from Lesson 9.2.4.

$0.72$
Hint (a):
How is this decimal described in words?
More Help 1(a):
How do you write this as a fraction?
More Help 2(a):
Reduce the fraction.
Answer (a):
$\frac{18}{25}$

$0 . \overline { 72 }$
Hint (b):
By what multiple does the decimal repeat?
Step 1 (b):
Multiply the decimal by its multiple $(100)$ and subtract one set of $0.72$ .
Step 2 (b):
Simplify.
Answer (b):
$\frac{8}{11}$

$0.175$
Hint (c):
See part (a).

$0 . \overline { 175 }$
Hint (d):
See part (b).

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