Subtract 21/24 from 9/63
9/63 - 21/24 is -41/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 24 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
9/63 = 9 × 8/63 × 8 = 72/504 - Likewise, for the 2nd fraction, since 24 × 21 = 504,
21/24 = 21 × 21/24 × 21 = 441/504 - Subtract the two like fractions:
72/504 - 441/504 = 72 - 441/504 = -369/504 - After reducing the fraction, the answer is -41/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/63-21/24 9/63-42/24 9/63-21/48 27/63-21/24 9/63-63/24 9/63-21/72 45/63-21/24