How do i reduce fractions to the lowest terms

Julian wrote the following numeric pattern on the board3,10,17,24,31,38.what numbers of julian's pattern are compound numbers.

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each