Unit Rate & Ratio Solver

Solve proportions and find unit rates instantly

Grades 6–7

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Unit Rate & Proportion Solver

Grades 6–7 · Rates, ratios, and proportions

Try an example:

Quantity

Unit 1 (e.g. "miles")

Per how many?

Unit 2 (e.g. "hours")

60 miles ÷ 2 hours =

30.00 miles per hours

That means every 1 hours has 30.00 miles

Set up a/b = c/d. Choose the unknown and fill in the rest.

Which value is unknown?

Cross-multiplication:

3 × ? = 1.50 × 7 → ? = (1.50 × 7) ÷ 3

D = 3.5

Check: 3 / 1.50 ≈ 7 / 3.5000

💡 Example: If 3 apples cost $1.50, how much do 7 cost? Set a=3, b=1.50, c=7, unknown=d → d = $3.50