Year 6 · Maths · SATs revision · Lesson 2
Arithmetic practice: fractions, decimals and percentages
SATs arithmetic practice with fractions (all four operations), decimals and percentages of amounts.
24-minute video lesson
Teaching, worked examples and 20 practice questions solved step by step.
Watch free for a monthWhat your child will learn
- Add and subtract fractions and mixed numbers
- Multiply fractions
- Divide fractions by whole numbers
- Multiply and divide decimals
- Find percentages of amounts
The method
- Spot the type.
- Use the matching method.
- Simplify; check places.
- Estimate.
Key words: fraction, decimal, percentage, mixed number, simplify.
Worked examples
The first three practice questions from the lesson, with every step.
Question 1
Work out 3/5 + 1/10.
- Step 1: Common denominator 10: 3/5 = 6/10
- Step 2: 6/10 + 1/10 = 7/10
- Step 3: Can 7/10 simplify? No.
Answer: 7/10
Question 2
Work out 5/6 − 1/4.
- Step 1: Common denominator 12: 5/6 = 10/12 1/4 = 3/12
- Step 2: 10/12 − 3/12 = 7/12
- Step 3: Can 7/12 simplify? No.
Answer: 7/12
Question 3
Work out 21/4 + 12/3.
- Step 1: 21/4 = 9/4 12/3 = 5/3
- Step 2: Common denominator 12: 9/4 = 27/12 5/3 = 20/12
- Step 3: 27/12 + 20/12 = 47/12
- Step 4: Can 47/12 simplify? No.
- Step 5: 47/12 = 311/12
Answer: 311/12