Add 28/98 and 27/21
1st number: 28/98, 2nd number: 1 6/21
28/98 + 27/21 is 11/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 21 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
28/98 = 28 × 3/98 × 3 = 84/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
27/21 = 27 × 14/21 × 14 = 378/294 - Add the two like fractions:
84/294 + 378/294 = 84 + 378/294 = 462/294 - 462/294 simplified gives 11/7
- So, 28/98 + 27/21 = 11/7
In mixed form: 14/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/98+27/21 28/98+54/21 28/98+27/42 84/98+27/21 28/98+81/21 28/98+27/63