Add 81/42 and 7/27, Solve 1 39/42 + 7/27 as a fraction

Add 81/42 and 7/27

1^st number: 1 39/42, 2^nd number: 7/27

81/42 + 7/27 is 827/378.

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,
81/42 = 81 × 9/42 × 9 = 729/378
Likewise, for the 2nd fraction, since 27 × 14 = 378,
7/27 = 7 × 14/27 × 14 = 98/378
Add the two like fractions:
729/378 + 98/378 = 729 + 98/378 = 827/378
So, 81/42 + 7/27 = 827/378
In mixed form: 271/378

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