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Date:___________________

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Grade 5 - Mathematics
5.25 Addition and Subtraction of Mixed Numbers

Method:
  1. Add or subtract the whole numbers
  2. Add the fractional part
Example: 12 3/4 + 1 1/2
Add the whole numbers first 12 + 1 = 13
Add the fractional part 3/4 + 1/2
Denominators are 4 and 2, LCM is 4.
Multiply and divide each fraction by LCM
3/4 * 4/4 = 3/4
1/2 * 4/4 = 2/4
Adding 3/4 + 2/4 = 5/4
Answer: 13 5/4


Directions: Add or subtract the following mixed numbers. Also write at least ten examples of your own.

Name: ___________________

Date:___________________

Grade 5 - Mathematics
5.25 Addition and Subtraction of Mixed Numbers

Q 1: 6/10 - 2/5 = (hint: write equivalent fraction or simplified fraction for 6/10)
1/5
7/8
2/9
5/6

Q 2: 2 5/6 - 1 2/6 =
1 2/3
1 1/2
1 3/4
4 5/6

Q 3: 2 6/8 - 1 2/4 =
1 3/4
2 4/5
1 1/4
1 1/8

Q 4: 6 - 2 1/4 =
3 3/4
3 2/4
4 3/4
2 1/4

Q 5: 7 1/4 - 1 1/8 =
6 2/8
6 1/2
6 1/8
5 1/8

Q 6: 6 1/2 - 3 1/4 =
1 3/4
3 1/4
3 3/4
2 1/4

Q 7: 12 1/7 + 5 3/7 = (hint: first add the fraction parts by taking LCM of 2/3 and 1/2, then add the whole number parts)
17 4/7
17 3/9
17 3/7

Q 8: 2 2/3 + 3 1/2 + 6 1/6 = (hint: first add the fraction parts by taking LCD of 2/3 and 1/2, then add the whole number parts)
12 2/3
12 1/3
12 1/4

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Question 10: This question is available to subscribers only!


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