Subtract 80/70 from 10/18
1st number: 10/18, 2nd number: 1 10/70
10/18 - 80/70 is -37/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
10/18 = 10 × 35/18 × 35 = 350/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630 - Subtract the two like fractions:
350/630 - 720/630 = 350 - 720/630 = -370/630 - After reducing the fraction, the answer is -37/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/18-80/70 10/36-80/70 30/18-80/70 10/54-80/70 50/18-80/70 10/90-80/70 70/18-80/70