Add 1/18 and 81/28
1st number: 1/18, 2nd number: 2 25/28
1/18 + 81/28 is 743/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
1/18 = 1 × 14/18 × 14 = 14/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
81/28 = 81 × 9/28 × 9 = 729/252 - Add the two like fractions:
14/252 + 729/252 = 14 + 729/252 = 743/252 - So, 1/18 + 81/28 = 743/252
In mixed form: 2239/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18+81/28 1/36+81/28 1/18+81/56 3/18+81/28 1/54+81/28 1/18+81/84 5/18+81/28 1/90+81/28 7/18+81/28