Add 10/18 and 21/49
10/18 + 21/49 is 62/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 49 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 18 × 49 = 882,
10/18 = 10 × 49/18 × 49 = 490/882 - Likewise, for the 2nd fraction, since 49 × 18 = 882,
21/49 = 21 × 18/49 × 18 = 378/882 - Add the two like fractions:
490/882 + 378/882 = 490 + 378/882 = 868/882 - 868/882 simplified gives 62/63
- So, 10/18 + 21/49 = 62/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18+21/49 10/18+42/49 10/36+21/49 10/18+21/98 30/18+21/49 10/18+63/49 10/54+21/49 50/18+21/49 10/90+21/49 70/18+21/49