Add 63/40 and 9/20
1st number: 1 23/40, 2nd number: 9/20
63/40 + 9/20 is 81/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
63/40 = 63 × 1/40 × 1 = 63/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
9/20 = 9 × 2/20 × 2 = 18/40 - Add the two like fractions:
63/40 + 18/40 = 63 + 18/40 = 81/40 - So, 63/40 + 9/20 = 81/40
In mixed form: 21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40+18/20 63/80+9/20 63/40+9/40 63/40+27/20 63/40+9/60 63/40+45/20 63/40+63/20