it takes harrison 1 1//2 hours to finish his history project. it takes miles 3 2/3 hours to finish his science project. how many times as long does it takes miles to finish his science project than it takes harrison to finish his history project?

Do I have to subtract or divide?

1 answer

the key wording in "how many times as long "

"many times" suggests multiplication, which is turn suggests division.

so 3 2/3 รท 1 1/2

your first step would be to change those mixed fractions to useful fractions