In a Singapore HDB block, 3/8 of the residents are children. The remaining residents are adults. Express the ratio of children to adults in the block in its simplest form.
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Worked Solution
Step 1: Imagine the residents divided into 8 equal parts. 3 parts are children.
Step 2: The remaining 8 − 3 = 5 parts are adults.
Step 3: Children : Adults = 3 : 5. The numbers 3 and 5 share no common factor greater than 1, so this is already in simplest form.
Final answer: 3 : 5.
Answer: 3 : 5
Correct answer: 3 : 5
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