Advertisements
Advertisements
Question
Evaluate:
`3/7 + (-4)/9 + (-11)/7 + 7/9`
Sum
Advertisements
Solution
`= (3/7 + (-11)/7) + ((-4)/9 + 7/9)`
`= (3-11)/7 + (-4+7)/9`
`= (-8)/7 + 3/9`
| 7 | 7, 9 |
| 3 | 1,9 |
| 3 | 1,3 |
| 1,1 |
`= (-72+21)/63`
`=(-51)/63`
`=(-17)/21`
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Find the sum:
`(-2)/3 + 0`
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`(-2) "and" 2/5`
Fill in the blank:
Additive inverse of `(-5)/(-12)`= --------
Write the multiplicative inverse.
7
Solve:
`3 2/5 - 2 1/4`
Find the sum: `7/5 + 3/5`
Find the sum: `7/5 + 5/7`
`(3/4 - 5/8) + 1/2` = __________
`(-3)/5 + 2/5` = ______.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which when added to x gives y.
