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प्रश्न
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`7/(-18) "and" 8/27`
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उत्तर
`7/(-18) + 8/27`
=`(-7xx3)/(18xx3) + (8xx2)/(27xx2)`
| 2 | 18, 27 |
| 3 | 9, 27 |
| 3 | 3, 9 |
| 3 | 1, 3 |
| 1, 1 |
LCM of 18 and 27 = 2 x 3 x 3 x 3 = 54
= `(-21 + 16)/54 = -5/54`
Which is a rational number.
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संबंधित प्रश्न
Find the sum:
`5/3 + 3/5`
Evaluate:
`4/7 +0 + (-8)/9 + (-13)/7 + 17/9`
Evaluate:
`3/8 + (-5)/12 + 3/7 + 3/12 + (-5)/8 + (-2)/7`
Write the Additive Inverse(Negative) of : -2
Carry out the following addition of a rational number.
`1 2/3 + 2 4/5`
Carry out the following subtraction involving a rational number.
`13/36 - 2/40`
Carry out the division of a rational number.
`(-7)/8 div (-3)/6`
If p + 2q = 18 and pq = 40, find `2/"p" + 1/"q"`
Complete the following table by finding the sums:
| + | `-1/9` | `4/11` | `(-5)/6` |
| `2/3` | |||
| `-5/4` | `(-39)/44` | ||
| `-1/3` |
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find x + (y + z).
