Question

Amy had homework for math,science,and history.she spent 1/3 of her time working on math and 1/4 of her time working on science.

PART A: Amy estimated that she spent 1/7 of her time on both math and science homework. Without doing any calculations, determine whether or not Amy's estimate is accurate and explain why or why not.

Answer 1

she is wrong because she just added the denomenators
1/4 + 1/3 is actually 7/12
hope it helps!