Add 42/20 and 56/49
1st number: 2 2/20, 2nd number: 1 7/49
42/20 + 56/49 is 227/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
42/20 = 42 × 49/20 × 49 = 2058/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
56/49 = 56 × 20/49 × 20 = 1120/980 - Add the two like fractions:
2058/980 + 1120/980 = 2058 + 1120/980 = 3178/980 - 3178/980 simplified gives 227/70
- So, 42/20 + 56/49 = 227/70
In mixed form: 317/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+56/49 42/40+56/49 42/20+56/98 42/60+56/49