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प्रश्न
Add: `(-5)/9 "and" 7/18`
योग
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उत्तर
`(-5)/9 "and" 7/18 = (-5)/9 + 7/18`
`= (- 5 xx 2)/(9 xx 2) + (7 xx 1)/(18 xx 1)`
(∵ L.C.M. of 9 and 18 = 18)
`= (- 10)/18 + 7/18`
`= (- 10 + 7)/18 = (- 3)/18`
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