Add 72/28 and 15/10
1st number: 2 16/28, 2nd number: 1 5/10
72/28 + 15/10 is 57/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 10 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
72/28 = 72 × 5/28 × 5 = 360/140 - Likewise, for the 2nd fraction, since 10 × 14 = 140,
15/10 = 15 × 14/10 × 14 = 210/140 - Add the two like fractions:
360/140 + 210/140 = 360 + 210/140 = 570/140 - 570/140 simplified gives 57/14
- So, 72/28 + 15/10 = 57/14
In mixed form: 41/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/28+30/10 72/56+15/10 72/28+15/20 72/28+45/10 72/84+15/10 72/28+15/30 72/28+75/10 72/28+15/50 72/28+15/70