Pete the Painter can paint 5/6 of a room in 90 minutes.
How many minutes will it take Pete to paint the entire room?

5/7 of a group of students are boys.
There are 18 more boys than girls.
How many students are there altogether?

Karen promised Sara that she would give half of her remaining
money to Sara after giving 7/8 of it to her favorite charity.
If Karen gave $672 to her favorite charity, how much money will Sara receive?

Gary works at Ghosts and Goblins, a Halloween store..
He puts orange, black, and white Halloween candies in boxes.
After he fills a box, 1/4 is orange, 1/6 is black, and 21 are white.
How many candies does Boris put in each box?

Benjamin found a bag of money.
He decided to give 1/2 of the money to his best friend, 1/4 of the money to his sister, 1/8 of the money to his mother, and 1/16 of the money to his dad.
The amount of money that was left was $1.25.
How much money was in the bag when Benjamin found it?