Add 1/27 and 63/42, Solve 1/27 + 1 21/42 as a fraction

Add 1/27 and 63/42

1^st number: 1/27, 2^nd number: 1 21/42

1/27 + 63/42 is 83/54.

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

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
1/27 = 1 × 14/27 × 14 = 14/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
63/42 = 63 × 9/42 × 9 = 567/378
Add the two like fractions:
14/378 + 567/378 = 14 + 567/378 = 581/378
581/378 simplified gives 83/54
So, 1/27 + 63/42 = 83/54
In mixed form: 129/54

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