Add 72/18 and 18/54
1st number: 4 0/18, 2nd number: 18/54
72/18 + 18/54 is 13/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
72/18 = 72 × 3/18 × 3 = 216/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
18/54 = 18 × 1/54 × 1 = 18/54 - Add the two like fractions:
216/54 + 18/54 = 216 + 18/54 = 234/54 - 234/54 simplified gives 13/3
- So, 72/18 + 18/54 = 13/3
In mixed form: 41/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+36/54 72/36+18/54 72/54+18/54 72/18+90/54 72/90+18/54