Add 27/7 and 12/54, Solve 3 6/7 + 12/54 as a fraction

Add 27/7 and 12/54

1^st number: 3 6/7, 2^nd number: 12/54

27/7 + 12/54 is 257/63.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 7 × 54 = 378,
27/7 = 27 × 54/7 × 54 = 1458/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
12/54 = 12 × 7/54 × 7 = 84/378
Add the two like fractions:
1458/378 + 84/378 = 1458 + 84/378 = 1542/378
1542/378 simplified gives 257/63
So, 27/7 + 12/54 = 257/63
In mixed form: 45/63

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