Add 42/18 and 27/12, Solve 2 6/18 + 2 3/12 as a fraction

Add 42/18 and 27/12

1^st number: 2 6/18, 2^nd number: 2 3/12

42/18 + 27/12 is 55/12.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36

Next, find the equivalent fraction of both fractional numbers with denominator 36
For the 1st fraction, since 18 × 2 = 36,
42/18 = 42 × 2/18 × 2 = 84/36
Likewise, for the 2nd fraction, since 12 × 3 = 36,
27/12 = 27 × 3/12 × 3 = 81/36
Add the two like fractions:
84/36 + 81/36 = 84 + 81/36 = 165/36
165/36 simplified gives 55/12
So, 42/18 + 27/12 = 55/12
In mixed form: 47/12

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