Add 28/56 and 27/21, Solve 28/56 + 1 6/21 as a fraction

Add 28/56 and 27/21

1^st number: 28/56, 2^nd number: 1 6/21

28/56 + 27/21 is 25/14.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 56 × 3 = 168,
28/56 = 28 × 3/56 × 3 = 84/168
Likewise, for the 2nd fraction, since 21 × 8 = 168,
27/21 = 27 × 8/21 × 8 = 216/168
Add the two like fractions:
84/168 + 216/168 = 84 + 216/168 = 300/168
300/168 simplified gives 25/14
So, 28/56 + 27/21 = 25/14
In mixed form: 111/14

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