Add 1/81 and 1/28
1/81 + 1/28 is 109/2268.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 28 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 81 × 28 = 2268,
1/81 = 1 × 28/81 × 28 = 28/2268 - Likewise, for the 2nd fraction, since 28 × 81 = 2268,
1/28 = 1 × 81/28 × 81 = 81/2268 - Add the two like fractions:
28/2268 + 81/2268 = 28 + 81/2268 = 109/2268 - So, 1/81 + 1/28 = 109/2268
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/81+1/28 1/81+2/28 1/81+1/56 3/81+1/28 1/81+3/28 1/81+1/84 5/81+1/28 1/81+5/28 7/81+1/28 1/81+7/28