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Year 6 · Maths · Decimals · Lesson 3

Fractions, decimals and rounding

Convert fractions to decimals and decimals to fractions, compare them, and round decimals to the nearest whole number and to 1 or 2 decimal places.

Whiteboard video lesson: Fractions, decimals and rounding

18-minute video lesson

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

Watch free for a month

What your child will learn

  • Know key fraction–decimal equivalents
  • Convert fractions to decimals
  • Convert decimals to fractions
  • Round decimals
  • Order fractions and decimals

The method

  1. Find the last digit to keep.
  2. Look at the next digit.
  3. 5 or more: up. Less: down.
  4. Remove the digits after.

Key words: decimal, fraction, equivalent, round, decimal place.

Worked examples

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

Question 1

Write 1/2 as a decimal.

  1. Step 1: 1/2 = 50/100
  2. Step 2: 50/100 = 0.5

Answer: 0.5

Question 2

Write 1/4 as a decimal.

  1. Step 1: 1/4 = 25/100
  2. Step 2: 25/100 = 0.25

Answer: 0.25

Question 3

Write 4/5 as a decimal.

  1. Step 1: 4/5 = 80/100
  2. Step 2: 80/100 = 0.8

Answer: 0.8