Add 81/9 and 54/18
1st number: 9 0/9, 2nd number: 3 0/18
81/9 + 54/18 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
81/9 = 81 × 2/9 × 2 = 162/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
54/18 = 54 × 1/18 × 1 = 54/18 - Add the two like fractions:
162/18 + 54/18 = 162 + 54/18 = 216/18 - 216/18 simplified gives 12/1
- So, 81/9 + 54/18 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/18+54/18 81/9+54/36 81/27+54/18 81/45+54/18 81/9+54/90 81/63+54/18