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Question
Find the ratio of the first quantity to the second.
15 minutes, 1 hour
Solution
15 minutes : 1 hour = 15 minutes : 60 minutes
`15/60`
= `(15 div 15)/(60 div 15)` (HCF of 15 and 60 = 4)
= `1/4`
= 1 : 4
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