Add 81/27 and 12/54
1st number: 3 0/27, 2nd number: 12/54
81/27 + 12/54 is 29/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 27 × 2 = 54,
81/27 = 81 × 2/27 × 2 = 162/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
12/54 = 12 × 1/54 × 1 = 12/54 - Add the two like fractions:
162/54 + 12/54 = 162 + 12/54 = 174/54 - 174/54 simplified gives 29/9
- So, 81/27 + 12/54 = 29/9
In mixed form: 32/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/27+24/54 81/54+12/54 81/27+36/54 81/27+60/54 81/27+84/54