Add 15/12 and 63/54
1st number: 1 3/12, 2nd number: 1 9/54
15/12 + 63/54 is 29/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
15/12 = 15 × 9/12 × 9 = 135/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
63/54 = 63 × 2/54 × 2 = 126/108 - Add the two like fractions:
135/108 + 126/108 = 135 + 126/108 = 261/108 - 261/108 simplified gives 29/12
- So, 15/12 + 63/54 = 29/12
In mixed form: 25/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+63/54 15/24+63/54 45/12+63/54 15/36+63/54 75/12+63/54 15/60+63/54 15/84+63/54