Advertisements
Advertisements
Question
Add: `(-2)/5 "and" 3/7`
Sum
Advertisements
Solution
`(-2)/5 "and" 3/7`
`= (- 2 xx 7)/(5 xx 7) + (3 xx 5)/(7 xx 5)`
(∵ L.C.M. of 5 and 7 = 35)
`= (-14)/35 + 15/35`
`= (-14 + 15)/35 = 1/35`
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 `4/-7`
Add: `(-7)/24 "and" (-5)/48`
Add: `13/-16 "and" (- 11)/24`
Add: `(-9)/(-16) "and" (-11)/8`
Evaluate: `(-8)/9 + 4/9 + (-2)/9`
Subtract: `11/18 "from" (-5)/18`
Evaluate: `5/4 xx 3/7`
Multiply: `1 1/6 "and" 18`
Multiply: `27/28 "and" -14`
Evaluate: `(3 5/12 + 1 2/3) div (3 5/12 - 1 2/3)`
