Subtract 10/18 from 10/70
10/70 - 10/18 is -26/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
10/70 = 10 × 9/70 × 9 = 90/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
10/18 = 10 × 35/18 × 35 = 350/630 - Subtract the two like fractions:
90/630 - 350/630 = 90 - 350/630 = -260/630 - After reducing the fraction, the answer is -26/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/70-10/18 10/70-20/18 10/70-10/36 30/70-10/18 10/70-30/18 10/70-10/54 50/70-10/18 10/70-50/18 10/70-10/90 10/70-70/18