Add 1/12 and 30/81
1/12 + 30/81 is 49/108.
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,
1/12 = 1 × 27/12 × 27 = 27/324 - Likewise, for the 2nd fraction, since 81 × 4 = 324,
30/81 = 30 × 4/81 × 4 = 120/324 - Add the two like fractions:
27/324 + 120/324 = 27 + 120/324 = 147/324 - 147/324 simplified gives 49/108
- So, 1/12 + 30/81 = 49/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12+30/81 1/12+60/81 1/24+30/81 3/12+30/81 1/12+90/81 1/36+30/81 5/12+30/81 1/60+30/81 7/12+30/81 1/84+30/81