Add 56/35 and 63/20
1st number: 1 21/35, 2nd number: 3 3/20
56/35 + 63/20 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
56/35 = 56 × 4/35 × 4 = 224/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
63/20 = 63 × 7/20 × 7 = 441/140 - Add the two like fractions:
224/140 + 441/140 = 224 + 441/140 = 665/140 - 665/140 simplified gives 19/4
- So, 56/35 + 63/20 = 19/4
In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+63/20 56/35+63/40 56/35+63/60