Add 30/98 and 21/18
1st number: 30/98, 2nd number: 1 3/18
30/98 + 21/18 is 433/294.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 18 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
30/98 = 30 × 9/98 × 9 = 270/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
21/18 = 21 × 49/18 × 49 = 1029/882 - Add the two like fractions:
270/882 + 1029/882 = 270 + 1029/882 = 1299/882 - 1299/882 simplified gives 433/294
- So, 30/98 + 21/18 = 433/294
In mixed form: 1139/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/98+21/18 30/98+42/18 30/98+21/36 90/98+21/18 30/98+63/18 30/98+21/54 30/98+21/90