Add 21/20 and 63/32
1st number: 1 1/20, 2nd number: 1 31/32
21/20 + 63/32 is 483/160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 20 × 8 = 160,
21/20 = 21 × 8/20 × 8 = 168/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
63/32 = 63 × 5/32 × 5 = 315/160 - Add the two like fractions:
168/160 + 315/160 = 168 + 315/160 = 483/160 - So, 21/20 + 63/32 = 483/160
In mixed form: 33/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/20+63/32 21/40+63/32 21/20+63/64 63/20+63/32 21/60+63/32 21/20+63/96