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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`
Add, the pair of rational numbers, given below, and show that their addition (sum) is also a rational number
`(-8)/13 "and (-4)/13`
Evaluate:
`3/8 + (-5)/12 + 3/7 + 3/12 + (-5)/8 + (-2)/7`
Write the Additive Inverse(Negative) of : `(-7)/5`
Write the Additive Inverse(Negative) of : 0
Which rational numbers should be added to `(-7)/8` to get `5/9`?
Write the multiplicative inverse.
`(-3)/8`
Write the multiplicative inverse.
`-7 1/3`
Carry out the division of rational number:
`5 div 2/5`
Taking x = `(-4)/9`, y = `5/12` and z = `7/18`, find x + (y + z).
