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A bread 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

Sagot :

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