Advertisements
Advertisements
Question
Evaluate: `(18/33 xx (-22)/27) - ((13)/25 xx (-75)/26)`
Sum
Advertisements
Solution
`(18/33 xx (-22)/27) - ((13)/25 xx (-75)/26)`
`=> (18 xx (-22))/(33 xx 27) - (13 xx (-75))/(25 xx 26)`
`=> (2 xx (-2))/(3 xx 3) - (1 xx -3)/(1 xx 2)`
`=>(-4)/9 - ((-3)/2)`
`=>(-4)/9 + 3/2`
| 2 | 9, 2 |
| 3 | 9, 1 |
| 3 | 3, 1 |
| 1, 1 |
L.C.M. of 9 and 2 = 2 × 3 × 3 = 18
`=> (-4 xx 2)/(9 xx 2) + (3 xx 9)/(2 xx 9)`
(∵ L.C.M. of 9 and 2 = 18)
= `(-8 + 27)/18`
= `(19)/18`
= `1 1/18`
shaalaa.com
Concept for Problem Solving Using Operations on Rational Numbers
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Compare: `(-5)/8 and 7/-12`
Fill in the blank:
`5/8` and `3/10` are on the ________ side of zero.
Subtract: `(- 16)/21 "from" 1`
Subtract: `0 "from" (-3)/8`
Evaluate: `(-45)/39 xx (-13)/15`
Evaluate: `((-8)/9) xx ((-3)/16)`
Multiply: `27/28 "and" -14`
Evaluate: `((-4)/5 xx 3/2) + (9/-5 xx 10/3) - ((-3)/2 xx (-1)/4)`
Evaluate: `3 5/12 - 1 2/3`
Evaluate: `(- 3)/8+ (-5)/12`
