Add 81/54 and 36/9
1st number: 1 27/54, 2nd number: 4 0/9
81/54 + 36/9 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 9 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
81/54 = 81 × 1/54 × 1 = 81/54 - Likewise, for the 2nd fraction, since 9 × 6 = 54,
36/9 = 36 × 6/9 × 6 = 216/54 - Add the two like fractions:
81/54 + 216/54 = 81 + 216/54 = 297/54 - 297/54 simplified gives 11/2
- So, 81/54 + 36/9 = 11/2
In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/54+72/9 81/54+36/18 81/54+36/27 81/54+36/45 81/54+36/63