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Year 7 · Maths · Fractions, decimals and percentages · Lesson 3

Comparing and ordering FDP

Compare and order fractions, decimals and percentages by converting to a common form, and solve comparison problems.

Whiteboard video lesson: Comparing and ordering FDP

21-minute video lesson

Teaching, worked examples and 20 practice questions solved step by step.

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What your child will learn

  • Recall common equivalents
  • Compare two amounts in different forms
  • Order mixed fractions, decimals and percentages
  • Find a value between two amounts
  • Solve comparison problems

The method

  1. Change everything to decimals (or percentages).
  2. Give each the same number of decimal places.
  3. Put them in order.
  4. Write the answer in the original form.

Key words: compare, order, fraction, decimal, percentage.

Worked examples

The first three practice questions from the lesson, with every step.

Question 1

Which is bigger: 1/2 or 45%?

  1. Step 1: Change both to decimals:
  2. Step 2: 1/2 = 0.5, 45% = 0.45
  3. Step 3: 0.5 > 0.45

Answer: 1/2

Question 2

Which is bigger: 0.65 or 3/5?

  1. Step 1: Change both to decimals:
  2. Step 2: 0.65 = 0.65, 3/5 = 0.6
  3. Step 3: 0.65 > 0.6

Answer: 0.65

Question 3

Which is bigger: 8% or 0.1?

  1. Step 1: Change both to decimals:
  2. Step 2: 8% = 0.08, 0.1 = 0.1
  3. Step 3: 0.1 > 0.08

Answer: 0.1