Add 15/24 and 21/63
15/24 + 21/63 is 23/24.
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,
15/24 = 15 × 21/24 × 21 = 315/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
21/63 = 21 × 8/63 × 8 = 168/504 - Add the two like fractions:
315/504 + 168/504 = 315 + 168/504 = 483/504 - 483/504 simplified gives 23/24
- So, 15/24 + 21/63 = 23/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/24+21/63 15/24+42/63 15/48+21/63 45/24+21/63 15/72+21/63 75/24+21/63