Subtract 15/54 from 1/63
1/63 - 15/54 is -11/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 63 × 6 = 378,
1/63 = 1 × 6/63 × 6 = 6/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378 - Subtract the two like fractions:
6/378 - 105/378 = 6 - 105/378 = -99/378 - After reducing the fraction, the answer is -11/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/63-15/54 1/63-30/54 3/63-15/54 1/63-45/54 5/63-15/54 1/63-75/54 7/63-15/54