Add 1/28 and 3/81
1/28 + 3/81 is 55/756.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 81 is 2268
Next, find the equivalent fraction of both fractional numbers with denominator 2268 - For the 1st fraction, since 28 × 81 = 2268,
1/28 = 1 × 81/28 × 81 = 81/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
3/81 = 3 × 28/81 × 28 = 84/2268 - Add the two like fractions:
81/2268 + 84/2268 = 81 + 84/2268 = 165/2268 - 165/2268 simplified gives 55/756
- So, 1/28 + 3/81 = 55/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/28+3/81 1/28+6/81 1/56+3/81 3/28+3/81 1/28+9/81 1/84+3/81 5/28+3/81 1/28+15/81 7/28+3/81 1/28+21/81