Add 84/98 and 6/21
84/98 + 6/21 is 8/7.
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,
84/98 = 84 × 3/98 × 3 = 252/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
6/21 = 6 × 14/21 × 14 = 84/294 - Add the two like fractions:
252/294 + 84/294 = 252 + 84/294 = 336/294 - 336/294 simplified gives 8/7
- So, 84/98 + 6/21 = 8/7
In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98+12/21 84/98+6/42 84/98+18/21 84/98+6/63 84/98+30/21 84/98+42/21