Subtract 4/63 from 2/81
2/81 - 4/63 is -22/567.
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,
2/81 = 2 × 7/81 × 7 = 14/567 - Likewise, for the 2nd fraction, since 63 × 9 = 567,
4/63 = 4 × 9/63 × 9 = 36/567 - Subtract the two like fractions:
14/567 - 36/567 = 14 - 36/567 = -22/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/81-4/63 2/81-8/63 6/81-4/63 2/81-12/63 10/81-4/63 2/81-20/63 14/81-4/63 2/81-28/63