Add 56/20 and 21/98
1st number: 2 16/20, 2nd number: 21/98
56/20 + 21/98 is 211/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
56/20 = 56 × 49/20 × 49 = 2744/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
21/98 = 21 × 10/98 × 10 = 210/980 - Add the two like fractions:
2744/980 + 210/980 = 2744 + 210/980 = 2954/980 - 2954/980 simplified gives 211/70
- So, 56/20 + 21/98 = 211/70
In mixed form: 31/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20+42/98 56/40+21/98 56/20+63/98 56/60+21/98