Question

Todd had ¾ of an apple left from breakfast. His sister ate 1/8 of what was left. How much of the apple is left?

Answer 1

if his sister ate 1/8 that means 7/8 are left from the 3/4.

how much is 7/8 of 3/4?     $\bf \cfrac{3}{4}\cdot \cfrac{7}{8}\implies \cfrac{21}{32}$