Subtract 63/81 from 3/63
3/63 - 63/81 is -46/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 63 × 9 = 567,
3/63 = 3 × 9/63 × 9 = 27/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
63/81 = 63 × 7/81 × 7 = 441/567 - Subtract the two like fractions:
27/567 - 441/567 = 27 - 441/567 = -414/567 - After reducing the fraction, the answer is -46/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/63-63/81 9/63-63/81 15/63-63/81 21/63-63/81