Add Fractions
What is the first thing you must do when adding fractions?
Find the LCM
What is the first thing you must do when subtracting fractions?
Find the LCM.
What is the first thing you must do when multiplying fractions?
OR
Multiply straight across
What is the first thing you must do when dividing fractions?
Put an invisible 1 under the whole number
OR
KEEP, SWITCH, FLIP
What is a unit fraction?
A fraction with a 1 as the numerator.
Solve and simplify if needed: 2/7 + 3/5 =
31/35
Riley has a teal ribbon and a purple ribbon. The teal ribbon is 10 1/5 inches long and the purple ribbon is 17 3/10 inches long. How much longer is the purple ribbon than the teal ribbon?
7 1/10
Fina the area if the length is 4/5 ft and the width is 2/8 ft.
1/8
There were 6 foxes in the field. They found 4 heads of lettuce. How much of the lettuce will each fox get?
2/3 of the lettuce
Simplify: 8/40
1/5
A recipe for banana pudding calls for 2/3 of a cup of sugar for the flour mixture and 1/4 of a cup of sugar for the meringue topping. How many cups of sugar in all is required to make the banana pudding?
11/12 cups of sugar
Greenville's zoo has two elephants. The male elephant weighs 3/7 of a ton and the female elephant weighs 2/5 of a ton. How much more does the male weigh than the female?
1/35 more of a ton
Multiply: 10/5 x 1/4
1/2
Ruth had ⅙ of an apple that she wants to share with her 3 brothers. How much of the apple with each brother get if she splits it equally?
1/18 of the apple
What is the LCM: 2/8 and 7/12
24
Meg's Playground Design purchased 9 2/3 tons of sand. While preparing for their next job they needed to purchase, 4 1/15 more tons of the sand. How much sand does the company have now?
13 11/15 sand
Mr. Molina measured two pieces of elastic for a science experiment. The red piece of elastic was 15 2/4 inches long and the blue piece of elastic was 3 4/6 inches long. How much longer was the red piece?
11 5/6
Amiya wanted to find the area of her new rug. She measured the length as 4 ½ feet and the width as 2/6 of a foot. What is the area of her rug?
1 1/2
Jay has 9 birthday cakes he wants to share. He needs to evenly cut the cakes in ⅕ slices. How many slices will have in all?
45 slices
Write an equivalent fraction for 7/9 using the denominator of 36.
28/36
Alexis had 7/9 yards of string for her bracelet making business. She bought 2/6 more yards of string. How many yards does she have now?
1 1/9 yards
Jamie had 2/5 of a pizza but ate 2/8 of it for lunch one day. How much pizza does he have left?
3/20 pizza is left
James owns 5 ¼ acres of farmland. He grows carrots on 3/6 of the land. On how many acres of land does James grow carrots?
2 5/8
George needs to build 1/2 a mile of fence in 10 days. How much fence does George need to build each day?
1/20 of the fence
Change to a mixed number: 47/22
2 3/22