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प्रश्न
Evaluate:
`3/8 + (-5)/12 + 3/7 + 3/12 + (-5)/8 + (-2)/7`
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उत्तर
`= (3/8 - 5/8) + ((-5)/12 + 3/12) + (3/7 - 2/7)`
`= (-2)/8 - 2/12 + 1/7`
`= (-1)/4 - 1/6 + 1/7`
| 2 | 4, 6, 7 |
| 2 | 2, 3, 7 |
| 3 | 1, 3, 7 |
| 7 | 1, 1, 7 |
| 1, 1, 1 |
(LCM of 4, 6 and 7 = 2 x 2 x 3 x 7 = 84)
`= (-1xx21)/(4xx21) - (1xx14)/(6xx14) + (1xx12)/(7xx12)`
(LCM of 4, 6 and 7 = 84)
`= (-21 - 14 + 12)/84`
`= (-35 + 12)/84 = (-23)/84`
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संबंधित प्रश्न
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`(-5)/8` and `3/8`
Evaluate:
`2/3 + (-4)/5 + 1/3 + 2/5`
Evaluate:
`4/7 +0 + (-8)/9 + (-13)/7 + 17/9`
Fill in the Blank:
`(-5)/(-12)`+ its additive inverse = ______
Which rational numbers should be added to `(-7)/8` to get `5/9`?
Carry out the following subtraction involving a rational number.
`1 2/3 - 3 5/6`
Solve:
`5/12 + 7/16`
Solve:
`3 2/5 - 2 1/4`
Find the sum: `7/5 + 3/5`
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which when added to z gives us x.
