Add 21/12 and 49/54, Solve 1 9/12 + 49/54 as a fraction

Add 21/12 and 49/54

1^st number: 1 9/12, 2^nd number: 49/54

21/12 + 49/54 is 287/108.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108

Next, find the equivalent fraction of both fractional numbers with denominator 108
For the 1st fraction, since 12 × 9 = 108,
21/12 = 21 × 9/12 × 9 = 189/108
Likewise, for the 2nd fraction, since 54 × 2 = 108,
49/54 = 49 × 2/54 × 2 = 98/108
Add the two like fractions:
189/108 + 98/108 = 189 + 98/108 = 287/108
So, 21/12 + 49/54 = 287/108
In mixed form: 271/108

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