Question

Juan spent 1 1/2 hours working on a project on Monday, 2 hours on Tuesday, and 2 3/4 hours on Thursday. How many hours did it take him to finish the project?

Answer 1

this is how you solve it
you need a common denominator for 1 1/2 and 2 3/4 so you can do 4
1 1/2 •2= 1 2/4
so 1 2/4 + 2 3/4 = 3 1/4 then you add 2 so 5 1/4
the answers would be - 5 1/4

Answer 2

8 1/4 hours

Explanation: