Add 1/12 and 42/9
1st number: 1/12, 2nd number: 4 6/9
1/12 + 42/9 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
1/12 = 1 × 3/12 × 3 = 3/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
42/9 = 42 × 4/9 × 4 = 168/36 - Add the two like fractions:
3/36 + 168/36 = 3 + 168/36 = 171/36 - 171/36 simplified gives 19/4
- So, 1/12 + 42/9 = 19/4
In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/12+42/9 1/12+84/9 1/24+42/9 1/12+42/18 3/12+42/9 1/36+42/9 1/12+42/27 5/12+42/9 1/60+42/9 1/12+42/45 7/12+42/9 1/84+42/9 1/12+42/63