Add 35/18 and 81/12
1st number: 1 17/18, 2nd number: 6 9/12
35/18 + 81/12 is 313/36.
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,
35/18 = 35 × 2/18 × 2 = 70/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
81/12 = 81 × 3/12 × 3 = 243/36 - Add the two like fractions:
70/36 + 243/36 = 70 + 243/36 = 313/36 - So, 35/18 + 81/12 = 313/36
In mixed form: 825/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18+81/12 35/36+81/12 35/18+81/24 35/54+81/12 35/18+81/36 35/90+81/12 35/18+81/60 35/18+81/84