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FractionsMCQ · 1 mark

Ravi pours 512 of a bottle of syrup equally into 20 cups. What fraction of the whole bottle is in each cup? Give your answer as a fraction in simplest form.

  1. 148
  2. 5240
  3. 253
  4. 532
Need a hint?

Dividing by a whole number is the same as multiplying by its reciprocal. Then check whether the answer can be simplified.

Worked answer

  1. Sharing equally into 20 cups means dividing 512 by 20.
  2. Dividing by 20 is the same as multiplying by 120.
  3. 512 × 120 = 5240.
  4. Divide the top and bottom by 5: 5240 = 148.
Answer: 148

The mistake this question tests

Habit

Simplest form in final fraction answers

Pupils often multiply by 20 instead of dividing, which gives 253. Others stop at 5240 and forget to simplify.

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