Add 70/21 and 15/98
1st number: 3 7/21, 2nd number: 15/98
70/21 + 15/98 is 1025/294.
Steps for adding fractions
- 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 - For the 1st fraction, since 21 × 14 = 294,
70/21 = 70 × 14/21 × 14 = 980/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
15/98 = 15 × 3/98 × 3 = 45/294 - Add the two like fractions:
980/294 + 45/294 = 980 + 45/294 = 1025/294 - So, 70/21 + 15/98 = 1025/294
In mixed form: 3143/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+30/98 70/42+15/98 70/21+45/98 70/63+15/98 70/21+75/98