Add 54/9 and 7/81
1st number: 6 0/9, 2nd number: 7/81
54/9 + 7/81 is 493/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
54/9 = 54 × 9/9 × 9 = 486/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
7/81 = 7 × 1/81 × 1 = 7/81 - Add the two like fractions:
486/81 + 7/81 = 486 + 7/81 = 493/81 - So, 54/9 + 7/81 = 493/81
In mixed form: 67/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/9+14/81 54/18+7/81 54/9+21/81 54/27+7/81 54/9+35/81 54/45+7/81 54/9+49/81 54/63+7/81