Add 63/80 and 56/20
1st number: 63/80, 2nd number: 2 16/20
63/80 + 56/20 is 287/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
63/80 = 63 × 1/80 × 1 = 63/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
56/20 = 56 × 4/20 × 4 = 224/80 - Add the two like fractions:
63/80 + 224/80 = 63 + 224/80 = 287/80 - So, 63/80 + 56/20 = 287/80
In mixed form: 347/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/80+56/40 63/80+56/60