Add 1/18 and 81/84
1/18 + 81/84 is 257/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 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 84 × 3 = 252,
81/84 = 81 × 3/84 × 3 = 243/252 - Add the two like fractions:
14/252 + 243/252 = 14 + 243/252 = 257/252 - So, 1/18 + 81/84 = 257/252
In mixed form: 15/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/18+81/84 1/36+81/84 3/18+81/84 1/54+81/84 5/18+81/84 1/90+81/84 7/18+81/84