Add 81/12 and 40/27
1st number: 6 9/12, 2nd number: 1 13/27
81/12 + 40/27 is 889/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
81/12 = 81 × 9/12 × 9 = 729/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
40/27 = 40 × 4/27 × 4 = 160/108 - Add the two like fractions:
729/108 + 160/108 = 729 + 160/108 = 889/108 - So, 81/12 + 40/27 = 889/108
In mixed form: 825/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/12+80/27 81/24+40/27 81/12+40/54 81/36+40/27 81/12+40/81 81/60+40/27 81/84+40/27