Add 4/12 and 42/27
1st number: 4/12, 2nd number: 1 15/27
4/12 + 42/27 is 17/9.
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,
4/12 = 4 × 9/12 × 9 = 36/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
42/27 = 42 × 4/27 × 4 = 168/108 - Add the two like fractions:
36/108 + 168/108 = 36 + 168/108 = 204/108 - 204/108 simplified gives 17/9
- So, 4/12 + 42/27 = 17/9
In mixed form: 18/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12+42/27 4/12+84/27 4/24+42/27 4/12+42/54 4/36+42/27 4/12+42/81 20/12+42/27 4/60+42/27 28/12+42/27 4/84+42/27