Add 18/14 and 21/54, Solve 1 4/14 + 21/54 as a fraction

Add 18/14 and 21/54

1^st number: 1 4/14, 2^nd number: 21/54

18/14 + 21/54 is 211/126.

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

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 14 × 27 = 378,
18/14 = 18 × 27/14 × 27 = 486/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378
Add the two like fractions:
486/378 + 147/378 = 486 + 147/378 = 633/378
633/378 simplified gives 211/126
So, 18/14 + 21/54 = 211/126
In mixed form: 185/126

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