Dividing Fractions by Whole Numbers Melissa Sheldon

Write down the three steps that are involved in dividing fractions.

Objective: Students will be able to demonstrate how to divide a fraction with a whole number using a candy bar with 80% accuracy.


Lets access your prior knowledge
  1. Numerator- Top of a fraction, represents how much you have.
  2. Denominator- Bottom part of a fraction, represents the total number of equal parts.
  3. Whole Number Fractions- any number over 1: 6=6/1
  4. Multiply Fractions- multiply straight across
What's New
How is dividing and multiplying fractions related?
  • Dividing by a fraction is the same as multiplying by its reciprocal.
  • Just like in the video where it says 'flip' that is the same as finding the reciprocal.
  • For example, the reciprocal of 2/3 is 3/2 because 2/3 times 3/2=6/6, and 6/6=1
  • So remember when solving a problem follow three steps.
  1. Keep the first fraction the same
  2. Rewrite as a multiplication problem
  3. Find the reciprocal (flip)

Let's Practice

What are the three steps to dividing fractions with a whole number?

How do you find a reciprocal?


Created with images by Mimzy - "back to school pencils rainbow" • stevepb - "pencil eraser notepad" • Pexels - "advertisement advertising background" • stevendepolo - "Pencils and Erasers Lourdie Kumon Tutoring 2-7-15" • HomeMaker - "chocolate bar candy" • Mark Morgan Trinidad A - "0483 Numbers"

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