Dimensional Analysis

Use unit fractions to solve multi-step conversion problems.

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Watch the video

Start here (or skip if you already know it)

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Visualize it

Explore it, then spot the correct graph

3️⃣

Practice problems

Answer 3 problems (80%+ correct)

Step 1: Watch

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Dimensional Analysis

Khan Academy · 6:29

Play with the interactive model to see how the math works, then test yourself by spotting the correct graph.

Move the controls and watch the math change — build a picture in your head before you solve.

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Units cancel like numbers — track units through every step.

Try the Quiz tab to test your visual intuition for this skill.

Answer 3 problems with at least 80% correct to complete this skill.

Problem 1

Convert 2.5 hours to seconds.

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