Add 20/18 and 18/60
1st number: 1 2/18, 2nd number: 18/60
20/18 + 18/60 is 127/90.
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,
20/18 = 20 × 10/18 × 10 = 200/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
18/60 = 18 × 3/60 × 3 = 54/180 - Add the two like fractions:
200/180 + 54/180 = 200 + 54/180 = 254/180 - 254/180 simplified gives 127/90
- So, 20/18 + 18/60 = 127/90
In mixed form: 137/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18+18/60 20/18+36/60 20/36+18/60 60/18+18/60 20/18+54/60 20/54+18/60 20/18+90/60 20/90+18/60