Subtract 10/90 from 50/7
1st number: 7 1/7, 2nd number: 10/90
50/7 - 10/90 is 443/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
50/7 = 50 × 90/7 × 90 = 4500/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
10/90 = 10 × 7/90 × 7 = 70/630 - Subtract the two like fractions:
4500/630 - 70/630 = 4500 - 70/630 = 4430/630 - After reducing the fraction, the answer is 443/63
- In mixed form: 72/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-20/90 50/14-10/90 50/7-30/90 50/21-10/90 50/7-50/90 50/35-10/90 50/7-70/90 50/49-10/90