Abread recipe calls for 3/4 cups of flour and 1/5 cup of sugar. based on the recipe, what is the amount of sugar that should be used with 1 cup of flour?

a. 3/20 cup
b. 4/15 cup
c. 3 3/4 cups
d. 6 2/3 cups

To get one cup we can multiply by the reciprocal. (the oppisite of the current fraction) 3/4*4/3 = 1. so then we need to raise the sugar by the same variable
 1/5 * 4/3. cross multiplication gives us
1*4=4
3*5=15
4/15