Subtract 56/7 from 8/90
1st number: 8/90, 2nd number: 8 0/7
8/90 - 56/7 is -356/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
8/90 = 8 × 7/90 × 7 = 56/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
56/7 = 56 × 90/7 × 90 = 5040/630 - Subtract the two like fractions:
56/630 - 5040/630 = 56 - 5040/630 = -4984/630 - After reducing the fraction, the answer is -356/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90-56/7 8/90-56/14 24/90-56/7 8/90-56/21 40/90-56/7 8/90-56/35 56/90-56/7 8/90-56/49