Adding and Subtracting Fractions
1/6 + 1/3
1/2
What is the BEST common denominator to use when adding these fractions?
1/2 + 1/4
CD: 4
1/4 of 20
5
2 3/5 + _____ = 3
2/5
Three sandwiches are shared equally among 4 students. What fraction of a sandwich does each friend get?
3/4 of a sandwich
3/4 - 1/6
7/12
What is the BEST common denominator to use when adding these fractions?
1/3 + 1/8
CD: 24
3/8 of 32
12
_____ + 1/4 = 5/6
7/12
Dawn ran 2/5 mile on Monday and 1/3 mile on Tuesday. How far did she run altogether?
11/15 mile
2 1/5 + 3/10
2 1/2
What is the BEST common denominator to use when subtracting these fractions?
5/6 - 1/4
CD: 12
5/6 of 42
35
3 1/3 - _____ = 2
1 1/3
Ryan is 5 1/4 feet tall and John is 5 1/3 feet tall. Who is taller? How much taller?
John is 1/12 foot taller (1 inch taller)
4 2/3 - 1 5/6
2 5/6
What is the BEST common denominator to use when adding these fractions?
3 2/5 + 2 3/4
CD: 20
Sasha ran 3/5 of a 25 kilometer race. How many kilometers did she run?
15 kilometers
2 5/8 + _____ = 4
1 3/8
Conner makes his own trail mix. He mixes 2 2/3 cups of oats, 1 1/4 cups of nuts, and 1 1/6 cups of dried fruit. How many cups of ingredients does he use to make 1 batch of trail mix?
5 1/12 cups
3 1/4 - 1 5/6
1 5/12
What is the BEST common denominator to use when subtracting these fractions?
6 1/3 - 2 5/8
CD: 24
A baker uses 7/12 cup of sugar for each batch of cookies. How many cups of sugar are needed for 8 batches?
4 2/3 cups
_____ - 2/3 = 1 1/4
1 11/12
There are two tables eating in a restaurant. Table one shares 7 sandwiches among 6 people. Table two shares 9 sandwiches among 8 people. Do the people at table one or table two get more sandwich per person?
Table one gets more each; 1/24 more sandwich per person