Ratios & Percentages
Math · Foundational · Lesson 1 of 9

Fractions

Parts of a whole

An interactive lesson with 7 steps, about 6 minutes: you predict, drag and solve, with instant feedback on every answer. It runs in your browser and needs JavaScript.

What you’ll learn

  • Equivalent fractions: multiply or divide the top and bottom by the same number.
  • Fractions are points on the number line; to add them, use a common denominator.
  • “A fraction of” means multiply; dividing by a fraction means multiplying by its reciprocal.

Steps

  1. Which is bigger?
  2. Equivalent fractions
  3. Fractions are numbers
  4. Add fractions
  5. Multiplying and dividing
  6. Scoops of rice
  7. Pizza share