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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

MEAP Preparation - Grade 7 Mathematics
1.86 Addition and Subtraction of Mixed Fractions with Unlike Denominators

Method:
  1. Add or subtract the whole numbers
  2. Add the fractional part
Example: 1 1/2 + 3 3/4
  1. Add the whole numbers 1 and 3 which gives 4.
  2. Add the fractional part, 1/2 + 3/4
  3. LCM of 2 and 4 is 4.
  4. 1/2 x 4/4 = 2/4
  5. 3/4 x 4/4 = 3/4
  6. Add the fractions 2/4 + 3/4 = 5/4
Answer: 4 5/4

Example: 7 1/2 - 3 1/4

  1. Subtract the whole numbers (7-3) which gives 4.
  2. Subtract the fractional part.
  3. 1/2 - 3/4
  4. LCM of 2 and 4 is 4.
  5. 1/2 x 4/4 = 2/4
  6. 1/4 x 4/4 = 1/4
  7. (2-1)/4 = 1/4
Answer: 4 1/4


Directions: Add or subtract the following mixed fractions. Also write at least ten examples of your own.
Q 1: 10 3/4 - 5 3/5 =
5 0/5
5 6/20
5 3/20

Q 2: 9 5/7 + 6 1/2 =
15 6/7
15 17/14
16 3/14

Q 3: 1 2/3 + 1 2/4 =
3 7/6
1 7/6
2 7/6

Q 4: 9 1/4 + 2 1/2 =
12 3/4
11 1/3
11 3/4

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Question 6: This question is available to subscribers only!


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