Ratio

A ratio compares amounts. To share in a ratio, count the total parts, find one part, then multiply.

Key facts

  • Add the parts to get the total number of parts.
  • One part = total ÷ number of parts.
  • Simplify ratios like fractions: divide both sides by the same number.

Worked examples

Example 1

Share R120 in the ratio 3 : 5.

  1. Total parts: 3 + 5 = 8
  2. One part: 120 ÷ 8 = 15
  3. Multiply. 3 × 15 = 45, 5 × 15 = 75

Answer: R45 and R75

Questions about ratio