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Question
Simplify:
`2/5` of `(1/7-1/12)` of `1 2/5`
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Solution
`2/5` of `(1/7-1/12)` of `1 2/5`
= `2/5` of `((12-7)/84)` of `7/5`
= `2/5` of `(5/84)` of `7/5`
= `2/5xx5/84xx7/5=1/30`
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