Advertisements
Advertisements
प्रश्न
Evaluate: `-2 + 2/5 + (-2)/15`
बेरीज
उत्तर
`-2 + 2/5 + (-2)/15`
`(-2)/1 + 2/5 + (-2)/15`
`= (- 2 xx 15)/(1 xx 15) + (2 xx 3)/(5 xx 3) + (-2 xx 1)/(15 xx 1)` (∵ L.C.M. of 1, 5, 15 = 15)
`= (-30)/15 + (6)/15 + (-2)/15`
`= (- 30 + 6 - 2)/15`
`= (- 32 + 6)/15 = (- 26)/15`
shaalaa.com
Concept for Problem Solving Using Operations on Rational Numbers
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Find three rational numbers equivalent to `3/5`
Find x, such that: `7/-4 = "x"/8`
Add: `-3 "and" 2/3 `
Evaluate: `- 11/18 + (-3)/9 + 2/-3`
Subtract: `(- 8)/15 "from" 0`
Evaluate: `((-8)/9) xx ((-3)/16)`
Find the cost of `3 1/2` m cloth, if one metre cloth costs ₹325 `1/2`.
Divide: `35 "by" (- 7)/9`
The cost of 11 pens is ₹ `24 3/4`. Find the cost of one pen.
Evaluate:
`((-13)/7 xx (- 35)/39) - ((-7)/45 xx (9)/14)`