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प्रश्न
Which rational number should be subtracted from `(-5)/6` to get `4/9`?
योग
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उत्तर
Required rational number =`(-5)/6-4/9`
| 2 | 6, 9 |
| 3 | 3,9 |
| 3 | 1, 3 |
| 1, 1 |
∴ LCM of 6 and 9 = 18
=`(-5xx3)/(6xx3)-(4xx2)/(9xx2)` (∴ LCM of 6 and 9 = 18)
=`(-15)/18-8/18`
=`(-15-8)/18=(-23)/18= -1 5/18`
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