ALTA Education Cuisenaire Task Library
Mixed Numbers to Improper Fractions

Your turn — Count all the parts

Write each mixed number as an improper fraction.

Predict first. Then use the rods to model and explain your answer.

Build the mixed number. Replace every whole with the correct number of unit fractions. Then count all the parts.

  1. 1½
  2. 3½
  3. 1⅔
  4. 2⅔
  5. 1¾
  6. 2⅕

For at least two examples, write a sentence explaining why the whole number is multiplied by the denominator.