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प्रश्न
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`5/(-26) "and" 8/39`
उत्तर
`5/(-26) + 8/39`
`= (-5xx3)/(26xx3) + (8xx2)/(39xx2)`
| 2 | 26, 39 |
| 3 | 13, 39 |
| 13 | 13, 13 |
| 1, 1 |
`therefore` LCM of 26 and 39 = 2 x 3 x 13 = 78
`= (-15 + 16)/78` (LCM of 26 and 39 = 78)
`= 1/78`
Which is a rational number.
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संबंधित प्रश्न
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`6/11 "and" (-9)/11`
Evaluate:
`2/3 + (-4)/5 + 1/3 + 2/5`
Write the Additive Inverse(Negative) of : `(-7)/5`
Write the Additive Inverse(Negative) of : 1
Carry out the following subtraction involving a rational number.
`13/36 - 2/40`
Write the multiplicative inverse.
`(-3)/8`
Write the multiplicative inverse.
`-7 1/3`
Carry out the division of rational number.
`(-5)/13 div 7/26`
Add: `2 1/7 + 3 8/14`.
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which when added to x gives y.
