Add 2/21 and 63/20
1st number: 2/21, 2nd number: 3 3/20
2/21 + 63/20 is 1363/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
2/21 = 2 × 20/21 × 20 = 40/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
63/20 = 63 × 21/20 × 21 = 1323/420 - Add the two like fractions:
40/420 + 1323/420 = 40 + 1323/420 = 1363/420 - So, 2/21 + 63/20 = 1363/420
In mixed form: 3103/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+63/20 2/42+63/20 2/21+63/40 6/21+63/20 2/63+63/20 2/21+63/60 10/21+63/20 14/21+63/20