Subtract 64/63 from 9/15
1st number: 9/15, 2nd number: 1 1/63
9/15 - 64/63 is -131/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 15 × 21 = 315,
9/15 = 9 × 21/15 × 21 = 189/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
64/63 = 64 × 5/63 × 5 = 320/315 - Subtract the two like fractions:
189/315 - 320/315 = 189 - 320/315 = -131/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-64/63 9/30-64/63 27/15-64/63 9/45-64/63 45/15-64/63 9/75-64/63 63/15-64/63