Subtract 8/63 from 15/70
15/70 - 8/63 is 11/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
15/70 = 15 × 9/70 × 9 = 135/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
8/63 = 8 × 10/63 × 10 = 80/630 - Subtract the two like fractions:
135/630 - 80/630 = 135 - 80/630 = 55/630 - After reducing the fraction, the answer is 11/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70-8/63 15/70-16/63 45/70-8/63 15/70-24/63 75/70-8/63 15/70-40/63 15/70-56/63