Add 56/21 and 21/54, Solve 2 14/21 + 21/54 as a fraction

Add 56/21 and 21/54

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

56/21 + 21/54 is 55/18.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 21 × 18 = 378,
56/21 = 56 × 18/21 × 18 = 1008/378
Likewise, for the 2nd fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378
Add the two like fractions:
1008/378 + 147/378 = 1008 + 147/378 = 1155/378
1155/378 simplified gives 55/18
So, 56/21 + 21/54 = 55/18
In mixed form: 31/18

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