Subtract 8/5 from 45/56
1st number: 45/56, 2nd number: 1 3/5
45/56 - 8/5 is -223/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 5 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
45/56 = 45 × 5/56 × 5 = 225/280 - Likewise, for the 2nd fraction, since 5 × 56 = 280,
8/5 = 8 × 56/5 × 56 = 448/280 - Subtract the two like fractions:
225/280 - 448/280 = 225 - 448/280 = -223/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56-8/5 45/56-16/5 45/56-8/10 45/56-24/5 45/56-8/15 45/56-40/5 45/56-8/25 45/56-56/5 45/56-8/35