Answer:
1 2/7 cups of sugar
Step-by-step explanation:
You can use a proportion.
To make it easier to write the proportion, we rewrite the numbers as decimals.
3 1/2 = 3.5
3/4 = 0.75
Let x be the unknown amount of sugar.
3.5 cups of flour is to 0.75 cup of sugar as 6 cups of flour is to x cups of sugar.
3.5/0.75 = 6/x
Cross multiply.
3.5x = 0.75 * 6
3.5x = 4.5
x = 4.5/3.5 = 45/35 = 9/7 = 1 2/7
