Add 72/5 and 28/12
1st number: 14 2/5, 2nd number: 2 4/12
72/5 + 28/12 is 251/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
72/5 = 72 × 12/5 × 12 = 864/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
28/12 = 28 × 5/12 × 5 = 140/60 - Add the two like fractions:
864/60 + 140/60 = 864 + 140/60 = 1004/60 - 1004/60 simplified gives 251/15
- So, 72/5 + 28/12 = 251/15
In mixed form: 1611/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/5+56/12 72/10+28/12 72/5+28/24 72/5+84/12 72/15+28/12 72/5+28/36 72/25+28/12 72/5+28/60 72/35+28/12 72/5+28/84