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प्रश्न
Carry out the following addition of a rational number.
`5/36 + 6/42`
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उत्तर
At first, we will calculate the LCM of 36 and 42. The prime factorisation is 36 and 42 is,
36 = 2 × 2 × 3 × 3
42 = 2 × 3 × 7
Now, LCM of 36 and 42 = 2 × 2 × 3 × 3 × 7 = 252
`5/36 + 6/42`
`= (5 xx 7)/(36 xx 7) + (6 xx 6)/(42 xx 6)`
`= 35/252 + 36/252`
`= (35 + 36)/252`
`= 71/252`
संबंधित प्रश्न
Find the sum:
`(-9)/10 + 22/15`
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Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`(-5)/8` and `3/8`
Write the Additive Inverse(Negative) of : `(-4)/(-13)`
Evaluate:
`(2/(-3) xx 5/4) + (5/9 xx 3/(-10))`
Carry out the division of a rational number.
`40/12 div 10/4`
Add: `-2/3 + 3/8`
`(-5)/6 + (-1)/6` = ______.
Complete the following table by finding the sums:
| + | `-1/9` | `4/11` | `(-5)/6` |
| `2/3` | |||
| `-5/4` | `(-39)/44` | ||
| `-1/3` |
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find the rational number which when added to z gives us x.
