Advertisements
Advertisements
प्रश्न
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`5/(-26) "and" 8/39`
Advertisements
उत्तर
`5/(-26) + 8/39`
`= (-5xx3)/(26xx3) + (8xx2)/(39xx2)`
| 2 | 26, 39 |
| 3 | 13, 39 |
| 13 | 13, 13 |
| 1, 1 |
`therefore` LCM of 26 and 39 = 2 x 3 x 13 = 78
`= (-15 + 16)/78` (LCM of 26 and 39 = 78)
`= 1/78`
Which is a rational number.
APPEARS IN
संबंधित प्रश्न
Find the sum:
`-2 1/3 + 4 3/5`
For each set of rational number, given below, verify the associative property of addition of rational number:
(i) `1/2 , 2/3 "and"-1/6`
Evaluate:
`3/8 + (-5)/12 + 3/7 + 3/12 + (-5)/8 + (-2)/7`
Write the Additive Inverse(Negative) of : 1
Fill in the blank:
Additive inverse of `(-5)/(-12)`= --------
Evaluate:
`(2/(-3) xx 5/4) + (5/9 xx 3/(-10))`
Carry out the following addition of a rational number.
`1 2/3 + 2 4/5`
Carry out the following addition of a rational number.
`2 3/11 + 1 3/77`
Carry out the following subtraction involving a rational number.
`13/36 - 2/40`
Solve:
`3 2/5 - 2 1/4`
