Advertisements
Advertisements
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`
योग
Advertisements
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.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Find the sum:
`(-9)/10 + 22/15`
Evaluate:
`4/7 +0 + (-8)/9 + (-13)/7 + 17/9`
Carry out the following subtraction involving a rational number.
`7/11 - 3/7`
Multiply the following rational number.
`0/6 xx 3/4`
Write the multiplicative inverse.
`(-17)/39`
The value of `(-5)/12 + 7/15` = ________
`(3/4 - 5/8) + 1/2` = __________
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).
