Subtract 75/63 from 15/35
1st number: 15/35, 2nd number: 1 12/63
15/35 - 75/63 is -16/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
15/35 = 15 × 9/35 × 9 = 135/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
75/63 = 75 × 5/63 × 5 = 375/315 - Subtract the two like fractions:
135/315 - 375/315 = 135 - 375/315 = -240/315 - After reducing the fraction, the answer is -16/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35-75/63 15/70-75/63 45/35-75/63 75/35-75/63