Advertisements
Advertisements
Question
Evaluate: `9/-16 + (-5/-12)`
Sum
Advertisements
Solution
`9/-16 + (-5/-12)`
`= 9/-16 + (5/12)`
| 2 | 16, 12 |
| 2 | 8, 6 |
| 2 | 4, 3 |
| 2 | 2, 3 |
| 3 | 1, 3 |
| 1, 1 |
L.C.M. of 16 and 12 = 2 × 2 × 2 × 2 × 3 = 48
`=> (9 xx 3)/(16 xx 3) + (5 xx 4)/(12 xx 4)`
(∵ L.C.M. of 16 and 12 = 48)
`=> (- 27 + 20)/48 = -7/48`
shaalaa.com
Concept for Problem Solving Using Operations on Rational Numbers
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Find three rational numbers equivalent to `3/5`
Find three rational numbers equivalent to `-5/9`
Add: `(- 5)/6 "and" 4/9`
Evaluate: `(- 9)/4 + 13/3 + 25/6`
Subtract: `0 "from" (-3)/8`
Multiply: `- 24 "and" 5/16`
Evaluate: `(-2)/3 + 3/4`
What rational number should be subtracted from `- 5/12` to get `5/24`.
Evaluate: `(18/33 xx (-22)/27) - ((13)/25 xx (-75)/26)`
Evaluate:
`((-13)/7 xx (- 35)/39) - ((-7)/45 xx (9)/14)`
