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प्रश्न
Evaluate:
`(-5)/18 - (-2)/9`
योग
उत्तर
| 2 | 18, 9 |
| 3 | 9, 9 |
| 3 | 3, 3 |
| 1, 1 |
`therefore` LCM of 9 and 18 = 2 × 3 × 3 = 18
`therefore (-5)/18 - (-2)/9`
`= (-5xx1)/(18xx1) - (-2xx2)/(9xx2)`
`= (-5+4)/18`
`= (-1)/18`
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