Subtract 10/18 from 80/70
1st number: 1 10/70, 2nd number: 10/18
80/70 - 10/18 is 37/63.
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,
80/70 = 80 × 9/70 × 9 = 720/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
10/18 = 10 × 35/18 × 35 = 350/630 - Subtract the two like fractions:
720/630 - 350/630 = 720 - 350/630 = 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: 80/70-20/18 80/70-10/36 80/70-30/18 80/70-10/54 80/70-50/18 80/70-10/90 80/70-70/18