Add 84/42 and 15/54, Solve 2 0/42 + 15/54 as a fraction

Add 84/42 and 15/54

1^st number: 2 0/42, 2^nd number: 15/54

84/42 + 15/54 is 41/18.

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,
84/42 = 84 × 9/42 × 9 = 756/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378
Add the two like fractions:
756/378 + 105/378 = 756 + 105/378 = 861/378
861/378 simplified gives 41/18
So, 84/42 + 15/54 = 41/18
In mixed form: 25/18

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