Add 10/98 and 72/21
1st number: 10/98, 2nd number: 3 9/21
10/98 + 72/21 is 173/49.
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,
10/98 = 10 × 3/98 × 3 = 30/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
72/21 = 72 × 14/21 × 14 = 1008/294 - Add the two like fractions:
30/294 + 1008/294 = 30 + 1008/294 = 1038/294 - 1038/294 simplified gives 173/49
- So, 10/98 + 72/21 = 173/49
In mixed form: 326/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/98+72/21 10/98+72/42 30/98+72/21 10/98+72/63 50/98+72/21 70/98+72/21