Add 7/15 and 81/12
1st number: 7/15, 2nd number: 6 9/12
7/15 + 81/12 is 433/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
7/15 = 7 × 4/15 × 4 = 28/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
81/12 = 81 × 5/12 × 5 = 405/60 - Add the two like fractions:
28/60 + 405/60 = 28 + 405/60 = 433/60 - So, 7/15 + 81/12 = 433/60
In mixed form: 713/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15+81/12 7/30+81/12 7/15+81/24 21/15+81/12 7/45+81/12 7/15+81/36 35/15+81/12 7/75+81/12 7/15+81/60 49/15+81/12 7/15+81/84