Subtract 72/15 from 10/63
1st number: 10/63, 2nd number: 4 12/15
10/63 - 72/15 is -1462/315.
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,
10/63 = 10 × 5/63 × 5 = 50/315 - Likewise, for the 2nd fraction, since 15 × 21 = 315,
72/15 = 72 × 21/15 × 21 = 1512/315 - Subtract the two like fractions:
50/315 - 1512/315 = 50 - 1512/315 = -1462/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/63-72/15 10/63-72/30 30/63-72/15 10/63-72/45 50/63-72/15 10/63-72/75 70/63-72/15