Subtract 2/63 from 9/21
9/21 - 2/63 is 25/63.
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,
2/63 = 2 × 1/63 × 1 = 2/63 - Subtract the two like fractions:
27/63 - 2/63 = 27 - 2/63 = 25/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21-2/63 9/21-4/63 9/42-2/63 27/21-2/63 9/21-6/63 9/63-2/63 45/21-2/63 9/21-10/63 63/21-2/63 9/21-14/63