Add 21/6 and 54/27, Solve 3 3/6 + 2 0/27 as a fraction

Add 21/6 and 54/27

1^st number: 3 3/6, 2^nd number: 2 0/27

21/6 + 54/27 is 11/2.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 27 is 54

Next, find the equivalent fraction of both fractional numbers with denominator 54
For the 1st fraction, since 6 × 9 = 54,
21/6 = 21 × 9/6 × 9 = 189/54
Likewise, for the 2nd fraction, since 27 × 2 = 54,
54/27 = 54 × 2/27 × 2 = 108/54
Add the two like fractions:
189/54 + 108/54 = 189 + 108/54 = 297/54
297/54 simplified gives 11/2
So, 21/6 + 54/27 = 11/2
In mixed form: 51/2

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