Add 21/54 and 25/14, Solve 21/54 + 1 11/14 as a fraction

Add 21/54 and 25/14

1^st number: 21/54, 2^nd number: 1 11/14

21/54 + 25/14 is 137/63.

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,
25/14 = 25 × 27/14 × 27 = 675/378
Add the two like fractions:
147/378 + 675/378 = 147 + 675/378 = 822/378
822/378 simplified gives 137/63
So, 21/54 + 25/14 = 137/63
In mixed form: 211/63

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