Knowbotic
FractionsShort answer · 2 marks

Find the missing fraction □ in the equation □ ÷ 25 = 34 − 16. Give your answer in its simplest form.

Need a hint?

Subtract the fractions first, then undo the division by multiplying by 25.

Worked answer

  1. Work out the right side: 34 − 16 = 912 − 212 = 712.
  2. Since □ ÷ 25 = 712, multiply both sides by 25: □ = 712 × 25 = 1460 = 730.
Answer: 7/30

The mistake this question tests

Habit

Simplest form in final fraction answers

Subtracting the numerators and denominators (giving 212) or dividing by 25 instead of multiplying by it will give a wrong answer.

How to fix it at home →

More PSLE fractions questions

All fractions short-answer questions →

Practise PSLE fractions until the mistakes stop.

Three PSLE questions, free, no sign-up. You’ll see exactly where the marks went. Then 7 days of everything for S$4.99.