Add 54/27 and 21/42, Solve 2 0/27 + 21/42 as a fraction

Add 54/27 and 21/42

1^st number: 2 0/27, 2^nd number: 21/42

54/27 + 21/42 is 5/2.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 27 × 14 = 378,
54/27 = 54 × 14/27 × 14 = 756/378
Likewise, for the 2nd fraction, since 42 × 9 = 378,
21/42 = 21 × 9/42 × 9 = 189/378
Add the two like fractions:
756/378 + 189/378 = 756 + 189/378 = 945/378
945/378 simplified gives 5/2
So, 54/27 + 21/42 = 5/2
In mixed form: 21/2

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