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Grade 7 · Math · Unit 11 of 14

Fractions

Add, subtract, multiply, divide

What your child practises

Adding and subtracting fractions with different denominators, and multiplying and dividing a fraction by a fraction.

Newfoundland and Labrador Curriculum curriculum outcome: Operation sense (by Grade 9) · adding and subtracting positive fractions and mixed numbers

How we explain it

Children can open this short lesson before they practise.

  1. To add or subtract, rename the fractions with a common denominator.
  2. To multiply, multiply the tops and multiply the bottoms.
  3. To divide, multiply by the reciprocal (flip the second fraction).

Example: 2/3 ÷ 1/6 = ? Flip 1/6 to 6/1 and multiply. 2/3 × 6 = 12/3. 12/3 = 4. Answer: 4

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    What is 1/8 × 1/4?

    1/8 × 1/4

    • 1/12
    • 1/6
    • 1/32

  2. Question 2

    What is 1/3 + 2/5?

    1/3 + 2/5

    • 11/15
    • 4/5
    • 3/8

  3. Question 3

    What is 1/2 − 2/7?

    1/2 − 2/7

    • 3/14
    • 2/7
    • 1/5

  4. Question 4

    A jug is 3/4 full. You pour out 2/5 of what is in it. What fraction of the whole jug did you pour out?

    • 5/9
    • 2/3
    • 3/10

  5. Question 5

    What is 1/3 × 1/4?

    1/3 × 1/4

    • 1/12
    • 1/7
    • 2/7

  6. Question 6

    What is 3/5 − 5/12?

    3/5 − 5/12

    • 1/5
    • 11/60
    • 2/7

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