Add 63/54 and 54/42, Solve 1 9/54 + 1 12/42 as a fraction

Add 63/54 and 54/42

1^st number: 1 9/54, 2^nd number: 1 12/42

63/54 + 54/42 is 103/42.

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

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
63/54 = 63 × 7/54 × 7 = 441/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
54/42 = 54 × 9/42 × 9 = 486/378
Add the two like fractions:
441/378 + 486/378 = 441 + 486/378 = 927/378
927/378 simplified gives 103/42
So, 63/54 + 54/42 = 103/42
In mixed form: 219/42

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