Add 21/8 and 63/3
1st number: 2 5/8, 2nd number: 21 0/3
21/8 + 63/3 is 189/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 3 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Likewise, for the 2nd fraction, since 3 × 8 = 24,
63/3 = 63 × 8/3 × 8 = 504/24 - Add the two like fractions:
63/24 + 504/24 = 63 + 504/24 = 567/24 - 567/24 simplified gives 189/8
- So, 21/8 + 63/3 = 189/8
In mixed form: 235/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8+63/3 21/16+63/3 21/8+63/6 63/8+63/3 21/24+63/3 21/8+63/9 21/40+63/3 21/8+63/15 21/56+63/3 21/8+63/21