Question

marissa has $325 to spend on an office party. She spends 3/5 of the money on food and spends 1/4 on decorations. How money does she have left on invitations?

Answer 1

To find 3/5 of 325 I would divide 325 by 5. Multiply that answer by 3, and there's your first cost on food.

To find 1/4 of 325, divide 325 by 4. There's how much she spent on decorations.

Add those two together to get the total amount she has spent and then subtract that from 325 to see how much she has left for invitations.