Dividing Unit Fractions by Whole Numbers
What is 1/2 ÷ 4?
1/8
What is 3 ÷ 1/3?
9
What is 3 x 1/2?
1 1/2
If you have 6 apples, how many 1/2 apple portions can you make?
12
If you have 3 bags of flour and each bag contains 2/3 of a bag, how much flour do you have in total?
2 bags
Calculate 1/3 ÷ 5.
1/15
Calculate 5 ÷ 1/4.
20
Calculate 3 x 3/4.
2 1/4
A recipe needs 1/3 of a cup of sugar. If you have 2 cups, how many servings can you make?
6
A car can travel 1/4 of a mile on a gallon of gas. How far can it go with 5 gallons?
1 1/4 mile
If you have 1/6 ÷ 3, what is the result?
1/18
How do you solve 6 ÷ 1/2?
Use keep, change, flip to make the problem 6 x 2. The answer 12.
Find the product of 5 x 2/3.
3 1/3
You have 8 meters of ribbon. How many 1/4 meter pieces can you cut?
32
Ashley and four friends went trick-or-treating. Each of them got 4/5 of a bag of treats. How many bags of treats did they have in total?
4 bags
How do you find 1/4÷2? And what is the answer?
Use keep, change, flip to make the problem 1/4 x 1/2. The answer is 1/8.
What is the answer to 12 ÷ 1/6?
72
How do you find the answer 5 x 1/6?
Take 5 x 1 and leave 6 as the denominator. The answer is 5/6.
If a fish tank can hold 10 gallons and you are using 1/2 gallon for each fish, how many fish can you have?
20 fish
Ken drinks 2/7 of a carton of milk each day. How much milk does he drink in 3 days?
6/7 of a carton.
Explain the steps to solve 1/5÷10.
Use keep, change, flip to make the problem 1/5 x 1/10. Then multiply across to get the answer 1/50.
If you have 10 ÷ 1/10, what is the answer and explain why.
Using keep, change, flip you would change the problem to be 10 x 10. The answer is 100.
Explain how to multiply 7 x 3/8.
Take the whole number (7) times the numerator (3) and leave the denominator (8) the same. You would get 21/8 but need to change it to a mixed number since it is improper. You do this by dividing 21 ÷ 8. You get and answer of 2 with a remainder of 5. The answer is 2 5/8.
Ben has used 8/9 of cake batter. He used equal amounts of the leftover batter to make 4 equal cupcakes. What fraction of cake batter did Ben use for each cupcake?
1/36
There are 8 water bottles, and each bottle is 3/4 filled with water. If we pour all the water together, how many water bottles can be filled up?
6 bottles.