Add 72/18 and 36/54
1st number: 4 0/18, 2nd number: 36/54
72/18 + 36/54 is 14/3.
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,
36/54 = 36 × 1/54 × 1 = 36/54 - Add the two like fractions:
216/54 + 36/54 = 216 + 36/54 = 252/54 - 252/54 simplified gives 14/3
- So, 72/18 + 36/54 = 14/3
In mixed form: 42/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/18+72/54 72/36+36/54 72/54+36/54 72/90+36/54