Subtract 5/63 from 5/81
5/81 - 5/63 is -10/567.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 63 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
5/81 = 5 × 7/81 × 7 = 35/567 - Likewise, for the 2nd fraction, since 63 × 9 = 567,
5/63 = 5 × 9/63 × 9 = 45/567 - Subtract the two like fractions:
35/567 - 45/567 = 35 - 45/567 = -10/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/81-5/63 5/81-10/63 15/81-5/63 5/81-15/63 25/81-5/63 5/81-25/63 35/81-5/63 5/81-35/63