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Class 7

Chapter 8: Working with Fractions

To multiply fractions, multiply the tops and the bottoms separately. To divide by a fraction, multiply by its reciprocal (flip it over).

Learning outcomes

  • Multiply and divide fractions
  • Solve word problems with fractional quantities

Activities

  • Recipe-scaling with fractional servings

Worked examples

Read through these first, then try the practice below.

  1. Example 1 — Multiply fractions

    Find 2/3 × 3/4.

    Solution: (2 × 3) / (3 × 4) = 6/12 = 1/2.

  2. Example 2 — Divide fractions

    Find 3/4 ÷ 1/2.

    Solution: Flip the second: 3/4 × 2/1 = 6/4 = 3/2.

Self-do practice

Question 1 of 3 · Score 0/0

What is 1/2 × 1/3? (write like 1/6)

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