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Question
Which rational number should be added to `(-5)/9` to get `(-2)/3`?
Sum
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Solution
Required rational number
`= (-2)/3 - ((-5)/9)`
`= (-2)/3 + 5/9`
| 3 | 3, 9 |
| 3 | 1, 3 |
| 1, 1 |
LCM of 3 and 9 = 9
`= (-2xx3)/(3xx3) + (5xx1)/(9xx1)`
LCM of 3 and 9 = 9
`= (-6+5)/9 = (-1)/9`
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