Add 72/21 and 12/98
1st number: 3 9/21, 2nd number: 12/98
72/21 + 12/98 is 174/49.
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,
72/21 = 72 × 14/21 × 14 = 1008/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
12/98 = 12 × 3/98 × 3 = 36/294 - Add the two like fractions:
1008/294 + 36/294 = 1008 + 36/294 = 1044/294 - 1044/294 simplified gives 174/49
- So, 72/21 + 12/98 = 174/49
In mixed form: 327/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+24/98 72/42+12/98 72/21+36/98 72/63+12/98 72/21+60/98 72/21+84/98