Advertisements
Advertisements
Question
Evaluate: `5 + (-3)/4 + (-5)/8`
Sum
Advertisements
Solution
`5 + (-3)/4 + (-5)/8`
`5/1 + (-3)/4 + (-5)/8`
`= (5 xx 8)/(1 xx 8) + ((-3) xx 2)/(4 xx 2) + ((-5) xx 1)/(8 xx 1)`
(∵ L.C.M. of 1, 4 and 8 = 8)
`= (40)/8 + (-6)/8 + (-5)/8`
` = (40 - 6 - 5)/8 = (40 - 11)/8 =(29)/8`
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: `(-7)/8 and 5/-6`
Fill in the blank:
`5/8` and `3/10` are on the ________ side of zero.
Subtract : `2/9 "from" 5/9`
Evaluate: `((- 35)/39 xx (- 13)/7) - (7/90 xx (- 18)/14)`
Divide: `(-20)/9 "by" (-5)/9`
Divide: `(- 22)/9 "by" 11/18`
Evaluate: `3 5/12 - 1 2/3`
The cost of 11 pens is ₹ `24 3/4`. Find the cost of one pen.
The sum of two rational numbers is -5. If one of them is `(-52)/25`, find the other.
Evaluate: `- 2/3 - ((- 5)/7)`
