Add 54/21 and 27/49, Solve 2 12/21 + 27/49 as a fraction

Add 54/21 and 27/49

1^st number: 2 12/21, 2^nd number: 27/49

54/21 + 27/49 is 153/49.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147

Next, find the equivalent fraction of both fractional numbers with denominator 147
For the 1st fraction, since 21 × 7 = 147,
54/21 = 54 × 7/21 × 7 = 378/147
Likewise, for the 2nd fraction, since 49 × 3 = 147,
27/49 = 27 × 3/49 × 3 = 81/147
Add the two like fractions:
378/147 + 81/147 = 378 + 81/147 = 459/147
459/147 simplified gives 153/49
So, 54/21 + 27/49 = 153/49
In mixed form: 36/49

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