Add 15/27 and 63/12
1st number: 15/27, 2nd number: 5 3/12
15/27 + 63/12 is 209/36.
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,
15/27 = 15 × 4/27 × 4 = 60/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
63/12 = 63 × 9/12 × 9 = 567/108 - Add the two like fractions:
60/108 + 567/108 = 60 + 567/108 = 627/108 - 627/108 simplified gives 209/36
- So, 15/27 + 63/12 = 209/36
In mixed form: 529/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/27+63/12 15/54+63/12 15/27+63/24 45/27+63/12 15/81+63/12 15/27+63/36 75/27+63/12 15/27+63/60 15/27+63/84