Add 1/27 and 45/12
1st number: 1/27, 2nd number: 3 9/12
1/27 + 45/12 is 409/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 12 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 27 × 4 = 108,
1/27 = 1 × 4/27 × 4 = 4/108 - Likewise, for the 2nd fraction, since 12 × 9 = 108,
45/12 = 45 × 9/12 × 9 = 405/108 - Add the two like fractions:
4/108 + 405/108 = 4 + 405/108 = 409/108 - So, 1/27 + 45/12 = 409/108
In mixed form: 385/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/27+45/12 1/27+90/12 1/54+45/12 1/27+45/24 3/27+45/12 1/81+45/12 1/27+45/36 5/27+45/12 1/27+45/60 7/27+45/12 1/27+45/84