CPM Homework Help : CC1MN Problem 9-74

Simplify each of the following expressions by using one of the strategies in the Math Notes box for this lesson.

$\frac { 2 } { 3 } \div \frac { 3 } { 5 }$
Step 1 (a):
Write the problem as multiplication by taking the reciprocal of the second fraction: $\frac{2}{3} \cdot \frac{5}{3}$
Step 2 (a):
Multiply the numerators and the denominators: $\frac{10}{9}$

$\frac { 5 } { 6 } \div \frac { 1 } { 12 }$
Hint (b):
Follow the steps you used to solve part (a).
Answer (b):
$10$

$3 \frac { 1 } { 8 } \div 2 \frac { 1 } { 2 }$
Hint (c):
Write both mixed numbers as fractions greater than one, then follow the examples in part (a) and part (b).