Estimating fractions
Equivalent Fractions
Word Problems
Adding
Subtracting
100

Estimate if the fraction is closest to 0, 1/2, or 1: 8/9

1

100
Reduce the fraction: 8/28
2/7
100
For the school’s sports day, a group of students prepared 21 1/2 liters of lemonade. At the end of the day they had 2 5/8 liters left over. How many liters of lemonade were sold?
18 7/8 liters
100
3/8 + 3/8
6/8 = 3/4
100
7/8 - 5/8
2/8 = 1/4
200

Estimate if the fraction is closest to 0, 1/2, or 1: 4/7

1/2

200
Reduce the fraction: 9/36
1/4
200
Brandon and his son went fishing. Brandon caught 3 3/4 lb of fish while his son caught 2 1/4 lb of fish. What is the total weight of the fishes that they caught?
5 4/4 = 6 lb
200
2/3 + 1/6
5/6
200
7/10 - 1/2
2/10 = 1/5
300

Estimate the mixed numbers, then subtract: 5 11/12 - 3 1/9

3

300

Write the mixed number as an improper fraction: 3 3/4

15/4

300
Brian has a bamboo pole that was 6 ¾ m long. He cut off 1 1/4 m and another 2 1/3 m. What is the length of the remaining bamboo pole in m?
3 2/12 = 3 1/6 m
300
1 3/8 + 2 3/8
3 6/8 = 3 3/4
300
1 4/5 - 1 3/10
5/10 = 1/2
400

Estimate if the fractions are closest to 0, 1/2, or 1, then add: 1/3 + 8/9

1 1/2

400
Write the fraction in simplest form: 5 12/8
6 1/2
400
For Joe’s birthday, he gets a cake. After dinner, he and his family eat 1/2 of the cake. Then, Joe eats another 1/8 of the cake for breakfast the following morning. How much of the cake is left over?
3/8 cake
400
5/6 + 1/4
13/12 = 1 1/12
400
6 1/4- 2 1/3
3 9/12 = 3 3/4
500

Estimate the mixed numbers, then add 7 5/12 + 6 11/18

14

500

Write the improper fraction as a mixed number: 23/12

1 11/12 

500
A tank has 10 3/4 gallons of water. 6 4/5 gallons were used and the tank was filled with another 5 3/4 gallons. What is the final volume of water in the tank?
9 7/10 gallons
500
7 5/6 + 2 3/4
10 7/12
500
5 - 1 2/7
3 5/7
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