Subtract 4/15 from 4/63
4/63 - 4/15 is -64/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 15 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
4/63 = 4 × 5/63 × 5 = 20/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
4/15 = 4 × 21/15 × 21 = 84/315 - Subtract the two like fractions:
20/315 - 84/315 = 20 - 84/315 = -64/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/63-4/15 4/63-8/15 4/63-4/30 12/63-4/15 4/63-12/15 4/63-4/45 20/63-4/15 4/63-20/15 4/63-4/75 28/63-4/15 4/63-28/15