Add 72/98 and 20/18
1st number: 72/98, 2nd number: 1 2/18
72/98 + 20/18 is 814/441.
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,
72/98 = 72 × 9/98 × 9 = 648/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
20/18 = 20 × 49/18 × 49 = 980/882 - Add the two like fractions:
648/882 + 980/882 = 648 + 980/882 = 1628/882 - 1628/882 simplified gives 814/441
- So, 72/98 + 20/18 = 814/441
In mixed form: 1373/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/98+40/18 72/98+20/36 72/98+60/18 72/98+20/54 72/98+20/90