Add 49/20 and 15/28
1st number: 2 9/20, 2nd number: 15/28
49/20 + 15/28 is 209/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
49/20 = 49 × 7/20 × 7 = 343/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Add the two like fractions:
343/140 + 75/140 = 343 + 75/140 = 418/140 - 418/140 simplified gives 209/70
- So, 49/20 + 15/28 = 209/70
In mixed form: 269/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20+15/28 49/20+30/28 49/40+15/28 49/20+15/56 49/20+45/28 49/60+15/28 49/20+15/84 49/20+75/28