Ratios & Proportions Practice

Practise equivalent ratios, unit rates and solving proportions — the math behind recipes, maps and prices.

Grades 6–7 · 6.RP⚡ Middle school
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How ratios and proportions work

A ratio compares two quantities; a proportion says two ratios are equal. Scaling both parts by the same factor keeps a ratio the same.

  1. Equivalent ratios: multiply both parts by the same number — 2 : 3 = 4 : 6 = 8 : 12.
  2. Unit rate: how much for one — divide to find the per-unit amount.
  3. Solving a proportion: find the scale factor between the known parts and apply it.

Worked examples

Equivalent ratio2 : 3 = 8 : ? — the left part ×4 went from 2 to 8, so the right part is 3 × 4 = 12.
Unit rate60 for 5 means 60 ÷ 5 = 12 for one.
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Tips & common mistakes

  • Scaling only one part of the ratio instead of both.
  • Confusing the ratio order — 2 : 3 is not the same as 3 : 2.
  • Forgetting to divide all the way down to one when finding a unit rate.

Frequently asked questions

What is a ratio?

A comparison of two quantities, like 2 : 3. It can also be written as a fraction, 2/3.

What are equivalent ratios?

Ratios that compare the same relationship — 2 : 3, 4 : 6 and 8 : 12 are all equivalent because each part is scaled by the same factor.

What is a unit rate?

A rate for one unit — if 5 items cost $60, the unit rate is $12 each.

How do you solve a proportion?

Find the factor between the matching parts and apply it to the unknown — in 2/3 = ?/12, the bottom ×4, so the top is 2 × 4 = 8.

What grade are ratios taught in?

Ratios, rates and proportions are grade 6–7 skills (6.RP and 7.RP).

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