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Question
Write the following rational numbers with positive denominators:
`15/(-28)`
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Solution
`15/(-28)` can be written as = `(15 xx (-1))/(-28 xx (-1)) = (-15)/28`
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Given that `p/q` and `r/s` are two rational numbers with different denominators and both of them are in standard form. To compare these rational numbers we say that:
`square/square < square/square`, if p × s < r × q
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`square/square > square/square`, if p × s > r × q
