Add 84/98 and 8/21
84/98 + 8/21 is 26/21.
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,
8/21 = 8 × 14/21 × 14 = 112/294 - Add the two like fractions:
252/294 + 112/294 = 252 + 112/294 = 364/294 - 364/294 simplified gives 26/21
- So, 84/98 + 8/21 = 26/21
In mixed form: 15/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/98+16/21 84/98+8/42 84/98+24/21 84/98+8/63 84/98+40/21 84/98+56/21