Advertisements
Advertisements
प्रश्न
Which rational numbers should be added to `(-7)/8` to get `5/9`?
Advertisements
उत्तर
Required rationa number = `5/9 - ((-7)/8)`
`= 5/9 + 7/8`
| 2 | 9, 8 |
| 2 | 9, 4 |
| 2 | 9, 2 |
| 3 | 9, 1 |
| 3 | 3, 1 |
| 1, 1 |
`therefore` LCM of 9 and 8 = 2 x 2 x 2 x 3 x 3 = 72
`= (5xx8)/(9xx8) + (7xx9)/(8xx9)`
LCM of 9 and 8 = 72
`= 40/72 + 63/72`
`= (40 + 63)/72 = 103/72 = 1 31/72`
APPEARS IN
संबंधित 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`
Evaluate:
`3/8 + (-5)/12 + 3/7 + 3/12 + (-5)/8 + (-2)/7`
Evaluate:
`(8/5 xx (-3)/2) + ((-3)/10 xx 9/16)`
Multiply the following rational number.
`3/11 xx 2/5`
Write the multiplicative inverse.
`-7 1/3`
Carry out the division of a rational number.
`2/3 div (-4)`
Solve:
`12/5 xx ((-10))/3`
Satpal walks `2/3 "km from a place P, towards the east and then from there" 1 5/7` km towards west. Where will he be now from P?
`(3/4 - 5/8) + 1/2` = __________
`(-3)/5 + 2/5` = ______.
