Add 72/18 and 18/60
1st number: 4 0/18, 2nd number: 18/60
72/18 + 18/60 is 43/10.
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,
72/18 = 72 × 10/18 × 10 = 720/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
18/60 = 18 × 3/60 × 3 = 54/180 - Add the two like fractions:
720/180 + 54/180 = 720 + 54/180 = 774/180 - 774/180 simplified gives 43/10
- So, 72/18 + 18/60 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+36/60 72/36+18/60 72/18+54/60 72/54+18/60 72/18+90/60 72/90+18/60