Dividing Fractions
What is it called when we flip a fraction and the numerator becomes the denominator?
5/12+1/3
9/12 = 3/4
3/5 x 1/3
3/15 = 1/5
Kenzy and Jade went together to get haircuts. Jade got 5/6 of an inch cut off and Kenzy got 1/3 of an inch cut off. How much more hair did Jade get taken off?
5/6 - 1/3 = 3/6 = 1/2
Jade got 1/2 inch more hair cut off than Kenzy.
How many 1/4's are in 2?
2 divided by 1/4 = 8
There are 8.
Some use this rule when dividing fractions: Keep, __________, ____________
Keep, SWITCH, FLIP
2/3+3/7
23/21 = 1 2/21
4 x 1/2
4/2 = 2
Zoe and Zeke were having a cannon ball competition. Zoe splashed 2 and 3/8 of a gallon of water out of the pool. Zeke splashed 1 and 5/6 of a gallon more. How much water splashed out of the pool?
What is 4 and 5/24 gallons?
There is 3/4 of a pizza left. 3 children want to share it. How much pizza does each child get to eat?
3/4 divided by 3 = 3/12 or 1/4
5/8 divided by 5
5/40
7/8 - 1/2
3/8
3 x 2/3
6/3 = 2
Mateo went to dinner and a golf practice for 3 hours. Golf practice lasted 1 and 3/4 hours. How many hours was dinner?
3 - 1 3/4 = 1 1/4
Dinner was 1 1/4 hours long.
Ernesto hiked 15 kilometers over the weekend. Each day he hiked 1/3 of the total kilometers. How much did he hike each day?
15 x 1/3 = 15/3 or 5
Ernesto hiked 5 kilometers each day.
5 divided by 2/3
15/2 = 7 1/2
4 1/6 + 3 1/3
7 3/6 = 7 1/2
3 x 4/5
12/5 = 2 2/5
Ms. Anj is practicing for a half marathon. On Sunday, she ran 12 and 5/8 kilometers. On Friday, she ran 6 and 3/8 kilometers. How many total kilometers did Ms. Anj run?
12 5/8 + 6 3/8 = 18 8/8 = 19
Ms. Anj ran 19 kilometers.
Sarah made 40 cookies for a bake sale. She sold 4/5 of them and kept the rest for herself and her family. How many cookies did she keep?
60 x 4/5 = 32
40 - 32 = 8
Sarah and her family ate 8 cookies.
2/3 divided by 4/5
10/12 = 5/6
5 - 4/9
4 5/9
3/8 x 4/5
12/40 = 3/10
Alice baked some brownies over the weekend. She needs 2 and 1/4 cups of coco. She could only find the 1/4 cup. How many times does she have to use the 1/4 cup to equal 2 and 1/4?
1/4 + 1/4 + 1/4 + 1/4 + 1/4 + 1/4 + 1/4 + 1/4 + 1/4 = 9/4
9/4 = 2 1/4
Leah has 6 yards of yarn. She is making a sweaters. She divides the yarn into 1/4's. How many bundles does Leah have after dividing the yarn?
6 divided by 1/4 = 24
Leah will have 24 bundles of yarn.