Subtract 5/63 from 9/21
9/21 - 5/63 is 22/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
9/21 = 9 × 3/21 × 3 = 27/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
5/63 = 5 × 1/63 × 1 = 5/63 - Subtract the two like fractions:
27/63 - 5/63 = 27 - 5/63 = 22/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21-5/63 9/21-10/63 9/42-5/63 27/21-5/63 9/21-15/63 9/63-5/63 45/21-5/63 9/21-25/63 63/21-5/63 9/21-35/63