Add 21/27 and 72/56, Solve 21/27 + 1 16/56 as a fraction

Add 21/27 and 72/56

1^st number: 21/27, 2^nd number: 1 16/56

21/27 + 72/56 is 130/63.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 56 is 1512

Next, find the equivalent fraction of both fractional numbers with denominator 1512
For the 1st fraction, since 27 × 56 = 1512,
21/27 = 21 × 56/27 × 56 = 1176/1512
Likewise, for the 2nd fraction, since 56 × 27 = 1512,
72/56 = 72 × 27/56 × 27 = 1944/1512
Add the two like fractions:
1176/1512 + 1944/1512 = 1176 + 1944/1512 = 3120/1512
3120/1512 simplified gives 130/63
So, 21/27 + 72/56 = 130/63
In mixed form: 24/63

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