Subtract 12/15 from 1/63
1/63 - 12/15 is -247/315.
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,
1/63 = 1 × 5/63 × 5 = 5/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
12/15 = 12 × 21/15 × 21 = 252/315 - Subtract the two like fractions:
5/315 - 252/315 = 5 - 252/315 = -247/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/63-12/15 1/63-24/15 1/63-12/30 3/63-12/15 1/63-36/15 1/63-12/45 5/63-12/15 1/63-60/15 1/63-12/75 7/63-12/15 1/63-84/15