Add 7/5 and 15/28
1st number: 1 2/5, 2nd number: 15/28
7/5 + 15/28 is 271/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
7/5 = 7 × 28/5 × 28 = 196/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Add the two like fractions:
196/140 + 75/140 = 196 + 75/140 = 271/140 - So, 7/5 + 15/28 = 271/140
In mixed form: 1131/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5+15/28 7/5+30/28 7/10+15/28 7/5+15/56 21/5+15/28 7/5+45/28 7/15+15/28 7/5+15/84 35/5+15/28 7/5+75/28 7/25+15/28 49/5+15/28 7/35+15/28