1 cup of milk is used with 
3 
4 
 cup of water 
 
Explanation: 
A comparison between the cups of milk and cups of water can be written as a ratio: 
 
Note that: 
1 
3 
> 
1 
4 
 
 
milk : water 
 
 
1 
3 
: 
1 
4 
 
← 
× 
12 
 to get rid of fractions 
 
12 
1 
× 
1 
3 
: 
12 
1 
× 
1 
4 
 
 
4 
: 
3 
 
4 cups of milk are used with 3 cups of water 
 
← 
÷ 
4 
 
1 cup of milk is used with 
3 
4 
 cup of water