Advertisements
Advertisements
Question
Evaluate: `(- 3)/8+ (-5)/12`
Sum
Advertisements
Solution
`(- 3)/8+ (-5)/12`
| 2 | 8, 12 |
| 2 | 4, 6 |
| 2 | 2, 3 |
| 3 | 1, 3 |
| 1, 1 |
L.C.M. of 8 and 12 = 2 × 2 × 2 × 3 = 24
`=> (-3 xx 3)/(8 xx 3) + (-5 xx 2)/(12 xx 2)`
(∵ L.C.M. of 8 and 12 = 24)
`=> (- 9 - 10)/24 = -19/24`
shaalaa.com
Concept for Problem Solving Using Operations on Rational Numbers
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Fill in the blank:
`5/8` and `-3/10` are on the ________ side of zero.
Add: `(-7)/24 "and" (-5)/48`
Evaluate: `(-8)/9 + 4/9 + (-2)/9`
Subtract : `2/9 "from" 5/9`
Subtract:
`(-3)/10 "from" 1/5`
Subtract: `-2 "from" (-3)/10`
Evaluate: `(5/-27) xx ((-9)/20)`
Multiply: `2 1/14 "and" -7`
A bus is moving with a speed of 65 `1/2` km per hour. How much distance will it cover in 1 `1/3` hours.
Divide: `35 "by" (- 7)/9`
