Advertisements
Advertisements
Question
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`9/(-4) " and" (-3)/8`
Advertisements
Solution
`9/(-4) + (-3)/8`
| 2 | 4, 8 |
| 2 | 2, 4 |
| 2 | 2, 2 |
| 1, 1 |
LCM of 4 and 8 = 2 x 2 x 2 = 8
`= (-9xx 2)/(4xx2) - (3xx1)/(8xx1)`
(LCM of 4 and 8 = 8)
`= (-18-3)/8 = (-21)/8`
Which is a rational number
APPEARS IN
RELATED QUESTIONS
Find the sum:
`(-9)/10 + 22/15`
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`5/(-26) "and" 8/39`
Evaluate:
`3/8 + (-5)/12 + 3/7 + 3/12 + (-5)/8 + (-2)/7`
Write the Additive Inverse(Negative) of : `(-3)/8`
Fill in the Blank:
`(-5)/(-12)`+ its additive inverse = ______
Which rational numbers should be added to `(-7)/8` to get `5/9`?
Evaluate:
`(2/(-3) xx 5/4) + (5/9 xx 3/(-10))`
Find the sum: `6/5 + ((-14)/15)`
Find the sum of `8/13` and `3/11`.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which when added to x gives y.
