Subtract 7/10 from 15/63
15/63 - 7/10 is -97/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 10 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630 - Likewise, for the 2nd fraction, since 10 × 63 = 630,
7/10 = 7 × 63/10 × 63 = 441/630 - Subtract the two like fractions:
150/630 - 441/630 = 150 - 441/630 = -291/630 - After reducing the fraction, the answer is -97/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/63-7/10 15/63-14/10 15/63-7/20 45/63-7/10 15/63-21/10 15/63-7/30 75/63-7/10 15/63-35/10 15/63-7/50 15/63-49/10 15/63-7/70