Advertisements
Advertisements
Question
Carry out the following addition of a rational number.
`5/36 + 6/42`
Advertisements
Solution
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`
RELATED QUESTIONS
Find the sum:
`(-3)/(-11) + 5/9`
Write the Additive Inverse(Negative) of : `(-3)/8`
Write the Additive Inverse(Negative) of : `(-7)/5`
Write the Additive Inverse(Negative) of : 1
Write the Additive Inverse(Negative) of : `-1/3`
Carry out the following subtraction involving a rational number.
`1 2/3 - 3 5/6`
Add: `-2/3 + 3/8`
The value of `(-5)/12 + 7/15` = ________
`(-3)/5 + 2/5` = ______.
Complete the following table by finding the sums:
| + | `-1/9` | `4/11` | `(-5)/6` |
| `2/3` | |||
| `-5/4` | `(-39)/44` | ||
| `-1/3` |
