Add 15/18 and 3/12
15/18 + 3/12 is 13/12.
Steps for adding fractions
- 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,
15/18 = 15 × 2/18 × 2 = 30/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
3/12 = 3 × 3/12 × 3 = 9/36 - Add the two like fractions:
30/36 + 9/36 = 30 + 9/36 = 39/36 - 39/36 simplified gives 13/12
- So, 15/18 + 3/12 = 13/12
In mixed form: 11/12
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