Subtract 8/63 from 3/54
3/54 - 8/63 is -1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
3/54 = 3 × 7/54 × 7 = 21/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
8/63 = 8 × 6/63 × 6 = 48/378 - Subtract the two like fractions:
21/378 - 48/378 = 21 - 48/378 = -27/378 - After reducing the fraction, the answer is -1/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/54-8/63 3/54-16/63 9/54-8/63 3/54-24/63 15/54-8/63 3/54-40/63 21/54-8/63 3/54-56/63