J's answer to Jackson's Secondary 4 E Maths Singapore question.

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J
J's answer
1022 answers (A Helpful Person)
Question ask for 2 integers, but what you have obtained are decimals.
0.1 : 0.03
Multiply by 100
10 : 3

Alternatively, you can convert them to grams first.
½kg = 0.5kg = 500 g
0.15kg = 150g

Ratio is :

500 : 150
= 50 : 15
= 10 : 3
It might be easier this way.