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प्रश्न
Carry out the following addition of a rational number.
`5/36 + 6/42`
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
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:
`3/7 + (-4)/9 + (-11)/7 + 7/9`
Evaluate:
`2/3 + (-4)/5 + 1/3 + 2/5`
Write the Additive Inverse(Negative) of : `-1/3`
Evaluate:
`(2/(-3) xx 5/4) + (5/9 xx 3/(-10))`
Carry out the following subtraction involving a rational number.
`7/11 - 3/7`
Multiply the following rational number.
`(-8)/9 xx 3/4`
Solve:
`12/5 xx ((-10))/3`
Find the sum: `7/5 + 5/7`
`(-3)/5 + 2/5` = ______.
