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Question
Write the following as rational numbers in their standard form:
240 ÷ (–840)
Solution
Here, 240 ÷ (–840) = `240/(-840)`
∵ HCF of 240 and 840 = 120
On dividing numerator and denominator by their HCF, we get
`(240 ÷ 120)/(-840 ÷ 120) = 2/(-7)`
= `(2 xx (-1))/(-7 xx (-1))` ......[Multiplying numerator and denominator by (–1) for positive denominator]
= `(-2)/7`
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