Subtract 15/63 from 1/70
1/70 - 15/63 is -47/210.
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,
1/70 = 1 × 9/70 × 9 = 9/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
15/63 = 15 × 10/63 × 10 = 150/630 - Subtract the two like fractions:
9/630 - 150/630 = 9 - 150/630 = -141/630 - After reducing the fraction, the answer is -47/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70-15/63 1/70-30/63 3/70-15/63 1/70-45/63 5/70-15/63 1/70-75/63 7/70-15/63