Add 21/8 and 4/63
1st number: 2 5/8, 2nd number: 4/63
21/8 + 4/63 is 1355/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 8 × 63 = 504,
21/8 = 21 × 63/8 × 63 = 1323/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
4/63 = 4 × 8/63 × 8 = 32/504 - Add the two like fractions:
1323/504 + 32/504 = 1323 + 32/504 = 1355/504 - So, 21/8 + 4/63 = 1355/504
In mixed form: 2347/504
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8+4/63 21/8+8/63 21/16+4/63 63/8+4/63 21/8+12/63 21/24+4/63 21/8+20/63 21/40+4/63 21/8+28/63 21/56+4/63