Add 20/18 and 42/49
1st number: 1 2/18, 2nd number: 42/49
20/18 + 42/49 is 124/63.
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,
20/18 = 20 × 49/18 × 49 = 980/882 - Likewise, for the 2nd fraction, since 49 × 18 = 882,
42/49 = 42 × 18/49 × 18 = 756/882 - Add the two like fractions:
980/882 + 756/882 = 980 + 756/882 = 1736/882 - 1736/882 simplified gives 124/63
- So, 20/18 + 42/49 = 124/63
In mixed form: 161/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18+42/49 20/18+84/49 20/36+42/49 20/18+42/98 60/18+42/49 20/54+42/49 20/90+42/49