CPM Homework Help : CC1 Problem 7-100

For each of the following pairs of fractions, complete the fraction on the right so that the two fractions are equivalent. Using a Giant One might be helpful.

$\frac { 30 } { 35 } = \frac { 6 } { \square }$
Hint (a):
The Giant One for this problem could look like this:
Answer (a):
Since $35\div5=7$ , therefore:
$\frac{30}{35}= \frac{6}{7}$

$\frac { 8 } { 40 } = \frac { \square } { 5 }$
Hint (b):
Make a Giant One like in part

$\frac { 15 } { 20 } = \frac { \square } { 4 }$
Hint (c):
The Giant One for this problem could look like this: