Add 27/54 and 50/21, Solve 27/54 + 2 8/21 as a fraction

Add 27/54 and 50/21

1^st number: 27/54, 2^nd number: 2 8/21

27/54 + 50/21 is 121/42.

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

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
27/54 = 27 × 7/54 × 7 = 189/378
Likewise, for the 2nd fraction, since 21 × 18 = 378,
50/21 = 50 × 18/21 × 18 = 900/378
Add the two like fractions:
189/378 + 900/378 = 189 + 900/378 = 1089/378
1089/378 simplified gives 121/42
So, 27/54 + 50/21 = 121/42
In mixed form: 237/42

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