Add 18/12 and 42/27
1st number: 1 6/12, 2nd number: 1 15/27
18/12 + 42/27 is 55/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
18/12 = 18 × 9/12 × 9 = 162/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
42/27 = 42 × 4/27 × 4 = 168/108 - Add the two like fractions:
162/108 + 168/108 = 162 + 168/108 = 330/108 - 330/108 simplified gives 55/18
- So, 18/12 + 42/27 = 55/18
In mixed form: 31/18
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