Add 40/12 and 2/18
1st number: 3 4/12, 2nd number: 2/18
40/12 + 2/18 is 31/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
40/12 = 40 × 3/12 × 3 = 120/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
2/18 = 2 × 2/18 × 2 = 4/36 - Add the two like fractions:
120/36 + 4/36 = 120 + 4/36 = 124/36 - 124/36 simplified gives 31/9
- So, 40/12 + 2/18 = 31/9
In mixed form: 34/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+2/18 40/12+4/18 40/24+2/18 40/12+2/36 40/12+6/18 40/36+2/18 40/12+2/54 40/12+10/18 40/60+2/18 40/12+2/90 40/12+14/18 40/84+2/18