Add 90/18 and 28/60
1st number: 5 0/18, 2nd number: 28/60
90/18 + 28/60 is 82/15.
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,
90/18 = 90 × 10/18 × 10 = 900/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
28/60 = 28 × 3/60 × 3 = 84/180 - Add the two like fractions:
900/180 + 84/180 = 900 + 84/180 = 984/180 - 984/180 simplified gives 82/15
- So, 90/18 + 28/60 = 82/15
In mixed form: 57/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+56/60 90/36+28/60 90/18+84/60 90/54+28/60