Add 1/54 and 63/42, Solve 1/54 + 1 21/42 as a fraction

Add 1/54 and 63/42

1^st number: 1/54, 2^nd number: 1 21/42

1/54 + 63/42 is 41/27.

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,
1/54 = 1 × 7/54 × 7 = 7/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
63/42 = 63 × 9/42 × 9 = 567/378
Add the two like fractions:
7/378 + 567/378 = 7 + 567/378 = 574/378
574/378 simplified gives 41/27
So, 1/54 + 63/42 = 41/27
In mixed form: 114/27

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