Fractions Decimals and Percentages
30 free practice questions with explanations
PassNova has 30 free KS2 SATs Maths practice questions on Fractions Decimals and Percentages, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Fractions Decimals and Percentages: example questions & answers
12 worked examples with answers and explanations below. Practise all 30 Fractions Decimals and Percentages questions free in the browser, with instant feedback on every answer.
What is 1/2 of 20?
- A5
- B10✓
- C15
- D20
Answer: 1/2 of 20 means half of 20, which is 20 ÷ 2 = 10.
What is 1/4 of 12?
- A3✓
- B4
- C6
- D12
Answer: 1/4 of 12 means a quarter of 12, which is 12 ÷ 4 = 3.
Which fraction is the biggest?
- A1/2✓
- B1/3
- C1/4
- D1/5
Answer: When the numerators are the same, the fraction with the smallest denominator is the biggest. 1/2 > 1/3 > 1/4 > 1/5.
What is 0.5 as a fraction?
- A1/2✓
- B1/3
- C1/4
- D2/3
Answer: 0.5 equals 1/2 (one half).
What is 25% of 40?
- A5
- B10✓
- C15
- D20
Answer: 25% means 1/4. 1/4 of 40 = 40 ÷ 4 = 10.
What is 3/4 of 12?
- A6
- B8
- C9✓
- D10
Answer: 3/4 of 12 = 3 × (12 ÷ 4) = 3 × 3 = 9.
Which decimal is equivalent to 1/4?
- A0.25✓
- B0.40
- C0.50
- D0.75
Answer: 1/4 = 0.25 (25/100).
What is 50% of 80?
- A30
- B40✓
- C50
- D60
Answer: 50% is the same as 1/2. Half of 80 is 40.
A pizza is cut into 8 equal slices. Tom eats 2 slices. What fraction of the pizza does Tom eat?
- A1/4✓
- B1/3
- C1/2
- D3/4
Answer: Tom eats 2 out of 8 slices. 2/8 = 1/4.
What is 10% of 50?
- A2
- B5✓
- C10
- D25
Answer: 10% = 1/10. 1/10 of 50 = 50 ÷ 10 = 5.
Which is bigger: 0.6 or 0.65?
- A0.6
- B0.65✓
- CThey are equal
- DCannot be compared
Answer: 0.65 > 0.6 because 0.65 = 0.60 + 0.05.
What is 2/5 of 25?
- A5
- B10✓
- C15
- D20
Answer: 2/5 of 25 = 2 × (25 ÷ 5) = 2 × 5 = 10.