Add 12/18 and 21/98
12/18 + 21/98 is 37/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 98 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 18 × 49 = 882,
12/18 = 12 × 49/18 × 49 = 588/882 - Likewise, for the 2nd fraction, since 98 × 9 = 882,
21/98 = 21 × 9/98 × 9 = 189/882 - Add the two like fractions:
588/882 + 189/882 = 588 + 189/882 = 777/882 - 777/882 simplified gives 37/42
- So, 12/18 + 21/98 = 37/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/18+21/98 12/18+42/98 12/36+21/98 36/18+21/98 12/18+63/98 12/54+21/98 60/18+21/98 12/90+21/98 84/18+21/98