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Question
Evaluate: `7/-26 + 16/39`
Sum
Solution
`7/-26 + 16/39`
| 2 | 26, 39 |
| 3 | 13, 39 |
| 13 | 13, 13 |
| 1, 1 |
L.C.M. of 26 and 39 = 2 × 3 × 13 = 78
`=> (-7 xx 3)/(26 xx 3) + (16 xx 2)/(39 xx 2)`
(∵ L.C.M. of -26 and 39 = 78)
`= (-21 + 32)/78 = 11/78`
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