Add 18/27 and 9/12
18/27 + 9/12 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
18/27 = 18 × 4/27 × 4 = 72/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
9/12 = 9 × 9/12 × 9 = 81/108 - Add the two like fractions:
72/108 + 81/108 = 72 + 81/108 = 153/108 - 153/108 simplified gives 17/12
- So, 18/27 + 9/12 = 17/12
In mixed form: 15/12
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