Question

Dillon studied 3 6/7 hours for his English test. He studied 5 3/14 hours for his math test. How much longer did he studied for his math test?

Answer 1

We will subtract the hours spent for his English test from the hours spent for his math test.

Therefore,

`5(3)/(14)-3(6)/(7)`

Find the L.C.M of the denominators

Thus,

`5(3)/(14)-3(6)/(7)=5-3(3\left(1\right?-2\left(6\right))/(14)=2(3-12)/(14)=2(-9)/(14)=1(14-9)/(14)=1(5)/(14)`

Hence, he spent 1 5/14hours longer for his math test.