please I need help revising maths I struggle maths u don't know want to do or how I should revise it pls help me mathematicians

Every time you drive you will experience a combination of driving conditions and environments.

Adam drew two same size rectangles and divided them into the same number of equal parts. he shaded 1/3 of one rectangle and 1/4 of the other rectangle. what is the least number of parts into which both rectangles could be divided into?

Somone me i want to know what 18 hours out of 24 hours in a fraction