Add 7/42 and 42/27, Solve 7/42 + 1 15/27 as a fraction

Add 7/42 and 42/27

1^st number: 7/42, 2^nd number: 1 15/27

7/42 + 42/27 is 31/18.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 42 × 9 = 378,
7/42 = 7 × 9/42 × 9 = 63/378
Likewise, for the 2nd fraction, since 27 × 14 = 378,
42/27 = 42 × 14/27 × 14 = 588/378
Add the two like fractions:
63/378 + 588/378 = 63 + 588/378 = 651/378
651/378 simplified gives 31/18
So, 7/42 + 42/27 = 31/18
In mixed form: 113/18

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