Add 81/18 and 12/36
1st number: 4 9/18, 2nd number: 12/36
81/18 + 12/36 is 29/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
81/18 = 81 × 2/18 × 2 = 162/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
12/36 = 12 × 1/36 × 1 = 12/36 - Add the two like fractions:
162/36 + 12/36 = 162 + 12/36 = 174/36 - 174/36 simplified gives 29/6
- So, 81/18 + 12/36 = 29/6
In mixed form: 45/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/18+24/36 81/36+12/36 81/18+12/72 81/54+12/36 81/18+60/36 81/90+12/36 81/18+84/36