Add 21/24 and 24/63
21/24 + 24/63 is 211/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 24 × 21 = 504,
21/24 = 21 × 21/24 × 21 = 441/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
24/63 = 24 × 8/63 × 8 = 192/504 - Add the two like fractions:
441/504 + 192/504 = 441 + 192/504 = 633/504 - 633/504 simplified gives 211/168
- So, 21/24 + 24/63 = 211/168
In mixed form: 143/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24+24/63 21/24+48/63 21/48+24/63 63/24+24/63 21/24+72/63 21/72+24/63