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Question
Add: `(- 5)/6 "and" 4/9`
Sum
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Solution
`(- 5)/6 "and" 4/9 = (-5)/6 + 4/9`
`= (- 5 xx 3)/(6 xx 3) + (4 xx 2)/(9 xx 2)`
(∵ L.C.M. of 6 and 9 = 18)
`= (-15)/18 + 8/18`
`= (-15 + 8)/18`
`= (-7)/18`
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