Add 56/40 and 21/49
1st number: 1 16/40, 2nd number: 21/49
56/40 + 21/49 is 64/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
56/40 = 56 × 49/40 × 49 = 2744/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
21/49 = 21 × 40/49 × 40 = 840/1960 - Add the two like fractions:
2744/1960 + 840/1960 = 2744 + 840/1960 = 3584/1960 - 3584/1960 simplified gives 64/35
- So, 56/40 + 21/49 = 64/35
In mixed form: 129/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+42/49 56/80+21/49 56/40+21/98 56/40+63/49