Add 81/20 and 63/5
1st number: 4 1/20, 2nd number: 12 3/5
81/20 + 63/5 is 333/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
63/5 = 63 × 4/5 × 4 = 252/20 - Add the two like fractions:
81/20 + 252/20 = 81 + 252/20 = 333/20 - So, 81/20 + 63/5 = 333/20
In mixed form: 1613/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/40+63/5 81/20+63/10 81/60+63/5 81/20+63/15 81/20+63/25 81/20+63/35