Question

Chelsea painted 1/4 of her bedroom and 3/7 of an hour at this rate how long will it take her to paint the entire room

Answer 1

it took 3/7 to do 1/4 of her room

 so multiply 3/7 x 4 to get total

 turn 4 into a fraction 4/1

 so 3/7 x 4/1 = 12/7  hours = approximately 1.71 hours