Add 21/54 and 30/14, Solve 21/54 + 2 2/14 as a fraction

Add 21/54 and 30/14

1^st number: 21/54, 2^nd number: 2 2/14

21/54 + 30/14 is 319/126.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 14 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378
Likewise, for the 2nd fraction, since 14 × 27 = 378,
30/14 = 30 × 27/14 × 27 = 810/378
Add the two like fractions:
147/378 + 810/378 = 147 + 810/378 = 957/378
957/378 simplified gives 319/126
So, 21/54 + 30/14 = 319/126
In mixed form: 267/126

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