Add 54/42 and 27/54, Solve 1 12/42 + 27/54 as a fraction

Add 54/42 and 27/54

1^st number: 1 12/42, 2^nd number: 27/54

54/42 + 27/54 is 25/14.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 42 × 9 = 378,
54/42 = 54 × 9/42 × 9 = 486/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
27/54 = 27 × 7/54 × 7 = 189/378
Add the two like fractions:
486/378 + 189/378 = 486 + 189/378 = 675/378
675/378 simplified gives 25/14
So, 54/42 + 27/54 = 25/14
In mixed form: 111/14

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