Advertisements
Advertisements
प्रश्न
What rational number should be subtracted from `5/8` to get `8/5`.
बेरीज
उत्तर
The required number = `5/8 - 8/5`
| 2 | 8, 5 |
| 2 | 4, 5 |
| 2 | 2, 5 |
| 5 | 1, 5 |
| 1, 1 |
`= (5 xx 5)/(8 xx 5) - (8 xx 8)/(5 xx 8)`
(∵ L.C.M. of 8, 5 = 40)
`= (25 - 64)/40 = -39/40`
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 `4/-7`
Compare: `2/7 and (-3)/-8`
Evaluate: `(-2)/5 + 3/5 + (-1)/5`
Evaluate: `(-11)/12 + 5/16 + (-3)/8`
Subtract:
`(- 6)/25 "from" (-8)/5`
Subtract: `0 "from" (-3)/8`
Evaluate: `2/3 xx -6/7`
Multiply: `5 1/8 "and" -16`
Evaluate: `((-5)/9 xx 6/-25) + (24/21 xx 7/8)`
Divide: `15/28 "by" 3/4`
