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Question
Find the difference between `8/9` and `2/7`
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Solution
`8/9 = (8 xx 7)/(9 xx 7) = 56/63`
`2/7 = (2 xx 9)/(7 xx 9) = 18/63`
`56/63 > 18/63`
∴ `8/9 > 2/7`
`8/9 - 2/7 = 56/63 - 18/63`
= `(56 - 18)/63`
= `38/63`
`8/9 - 2/7 = 38/63`
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