Add 6/28 and 30/81
6/28 + 30/81 is 221/378.
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,
6/28 = 6 × 81/28 × 81 = 486/2268 - Likewise, for the 2nd fraction, since 81 × 28 = 2268,
30/81 = 30 × 28/81 × 28 = 840/2268 - Add the two like fractions:
486/2268 + 840/2268 = 486 + 840/2268 = 1326/2268 - 1326/2268 simplified gives 221/378
- So, 6/28 + 30/81 = 221/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/28+30/81 6/28+60/81 6/56+30/81 18/28+30/81 6/28+90/81 6/84+30/81 30/28+30/81 42/28+30/81