Division

Carlos’s Method

Work Time

Carlos’s Method

Carlos knows that division and multiplication are inverse operations. He knows, for example, that dividing by 4 is the same as multiplying by 14. He thinks that he can use this inverse relationship to help him divide a fraction by a whole number.

To solve 89 ÷ 4, Carlos writes the expression 89 × 14. He multiplies to get 836, and then simplifies 836 to the equivalent fraction 29. Carlos writes this answer: 89 ÷ 4 = 29.

  • Use Carlos’s method to solve 95 ÷ 3.
  • Use multiplication to check your answer.
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