Subtract 15/63 from 7/15
7/15 - 15/63 is 8/35.
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,
7/15 = 7 × 21/15 × 21 = 147/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
15/63 = 15 × 5/63 × 5 = 75/315 - Subtract the two like fractions:
147/315 - 75/315 = 147 - 75/315 = 72/315 - After reducing the fraction, the answer is 8/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/15-15/63 7/15-30/63 7/30-15/63 21/15-15/63 7/15-45/63 7/45-15/63 35/15-15/63 7/15-75/63 7/75-15/63 49/15-15/63