Add 72/18 and 63/54
1st number: 4 0/18, 2nd number: 1 9/54
72/18 + 63/54 is 31/6.
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,
63/54 = 63 × 1/54 × 1 = 63/54 - Add the two like fractions:
216/54 + 63/54 = 216 + 63/54 = 279/54 - 279/54 simplified gives 31/6
- So, 72/18 + 63/54 = 31/6
In mixed form: 51/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36+63/54 72/54+63/54 72/90+63/54