Add 28/15 and 2/12
1st number: 1 13/15, 2nd number: 2/12
28/15 + 2/12 is 61/30.
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,
28/15 = 28 × 4/15 × 4 = 112/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
2/12 = 2 × 5/12 × 5 = 10/60 - Add the two like fractions:
112/60 + 10/60 = 112 + 10/60 = 122/60 - 122/60 simplified gives 61/30
- So, 28/15 + 2/12 = 61/30
In mixed form: 21/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+2/12 28/15+4/12 28/30+2/12 28/15+2/24 84/15+2/12 28/15+6/12 28/45+2/12 28/15+2/36 28/15+10/12 28/75+2/12 28/15+2/60 28/15+14/12 28/15+2/84