Add 8/54 and 63/42, Solve 8/54 + 1 21/42 as a fraction

Add 8/54 and 63/42

1^st number: 8/54, 2^nd number: 1 21/42

8/54 + 63/42 is 89/54.

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,
8/54 = 8 × 7/54 × 7 = 56/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
63/42 = 63 × 9/42 × 9 = 567/378
Add the two like fractions:
56/378 + 567/378 = 56 + 567/378 = 623/378
623/378 simplified gives 89/54
So, 8/54 + 63/42 = 89/54
In mixed form: 135/54

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