Add 40/12 and 9/20
1st number: 3 4/12, 2nd number: 9/20
40/12 + 9/20 is 227/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
9/20 = 9 × 3/20 × 3 = 27/60 - Add the two like fractions:
200/60 + 27/60 = 200 + 27/60 = 227/60 - So, 40/12 + 9/20 = 227/60
In mixed form: 347/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+9/20 40/12+18/20 40/24+9/20 40/12+9/40 40/12+27/20 40/36+9/20 40/12+9/60 40/12+45/20 40/60+9/20 40/12+63/20 40/84+9/20