Add 28/18 and 15/60
1st number: 1 10/18, 2nd number: 15/60
28/18 + 15/60 is 65/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
28/18 = 28 × 10/18 × 10 = 280/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
15/60 = 15 × 3/60 × 3 = 45/180 - Add the two like fractions:
280/180 + 45/180 = 280 + 45/180 = 325/180 - 325/180 simplified gives 65/36
- So, 28/18 + 15/60 = 65/36
In mixed form: 129/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18+15/60 28/18+30/60 28/36+15/60 84/18+15/60 28/18+45/60 28/54+15/60 28/18+75/60 28/90+15/60