Add 56/12 and 30/81
1st number: 4 8/12, 2nd number: 30/81
56/12 + 30/81 is 136/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 81 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 12 × 27 = 324,
56/12 = 56 × 27/12 × 27 = 1512/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
30/81 = 30 × 4/81 × 4 = 120/324 - Add the two like fractions:
1512/324 + 120/324 = 1512 + 120/324 = 1632/324 - 1632/324 simplified gives 136/27
- So, 56/12 + 30/81 = 136/27
In mixed form: 51/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+60/81 56/24+30/81 56/12+90/81 56/36+30/81 56/60+30/81 56/84+30/81