Dividing unit fractions by whole numbers and vice versa

A baker is making croissants. He has 18 pounds of dough. Each croissant is made from 1/8 pounds of dough. How many croissants can he make?

Mathematical Equivalence

ON

The kitchen assistant is helping the chef to serve soup. The chef made 3 pots of soup and the assistant is putting 1/16 of a cup of cream on top of the soup in each bowl. There are 12 cups of cream. How many bowls of soup can the assistant help prepare?

Mathematical Equivalence

OFF

Answer explanation

12 ÷ 1/16 = 192

The assistant can help prepare 192 bowls of soup.

According to the food label on a box cookies, each box has 16 servings and each serving contains 4 cookies. The weight of the box of cookies is 1/2 kilograms. What is the weight of each cookie?

Mathematical Equivalence

OFF

Answer explanation

1/2 ÷ 16 ÷ 4 = 1/128

Each cookie weighs 1 128 kilograms.

Grandma made an apple pie. Josh and his brother Joe finished 4/5 of it. Then, three friends came over and shared the leftover pie. How much of the pie did each friend eat?

Mathematical Equivalence

OFF

Answer explanation

(1 − 4/5) ÷ 3 = 1/15

Each friend ate 1 15 of the pie.

Each batch of cupcake mix requires 1/3 of a cup of milk. According to the recipe, the batch can make 12 small cupcakes or 8 large cupcakes. If Emma makes a batch of large cupcakes, how much milk is used for each cupcake?

Mathematical Equivalence

ON

Answer explanation

1/3 ÷ 8 = 1/24

1/24 cup of milk is used for each large cupcake.

Olivia used 1/2 pound of peppers and 1/15 pound of cheese to make 3 pizzas. If she uses the same recipe to make 5 pizzas, how much cheese is needed?

Mathematical Equivalence

ON

Answer explanation

1/15 ÷ 3 × 5 = 1/9

1/9 pound of cheese is used to make 5 pizzas.