Add 80/18 and 9/12
1st number: 4 8/18, 2nd number: 9/12
80/18 + 9/12 is 187/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
80/18 = 80 × 2/18 × 2 = 160/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
9/12 = 9 × 3/12 × 3 = 27/36 - Add the two like fractions:
160/36 + 27/36 = 160 + 27/36 = 187/36 - So, 80/18 + 9/12 = 187/36
In mixed form: 57/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18+18/12 80/36+9/12 80/18+9/24 80/18+27/12 80/54+9/12 80/18+9/36 80/18+45/12 80/90+9/12 80/18+9/60 80/18+63/12 80/18+9/84