Answers

Add 84/21 and 84/98

1^st number: 4 0/21, 2^nd number: 84/98

84/21 + 84/98 is 34/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 98 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 21 × 14 = 294,
   84/21 = 84 × 14/21 × 14 = 1176/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   84/98 = 84 × 3/98 × 3 = 252/294
4. Add the two like fractions:
   1176/294 + 252/294 = 1176 + 252/294 = 1428/294
5. 1428/294 simplified gives 34/7
6. So, 84/21 + 84/98 = 34/7
   In mixed form: 46/7

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁴/₄₂+⁸⁴/₉₈ ⁸⁴/₆₃+⁸⁴/₉₈

Add Fractions Calculator