Subtract 90/8 from 56/10
1st number: 5 6/10, 2nd number: 11 2/8
56/10 - 90/8 is -113/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
56/10 = 56 × 4/10 × 4 = 224/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
90/8 = 90 × 5/8 × 5 = 450/40 - Subtract the two like fractions:
224/40 - 450/40 = 224 - 450/40 = -226/40 - After reducing the fraction, the answer is -113/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/20-90/8 56/10-90/16 56/30-90/8 56/10-90/24 56/50-90/8 56/10-90/40 56/70-90/8 56/10-90/56