Subtract 63/10 from 45/8
1st number: 5 5/8, 2nd number: 6 3/10
45/8 - 63/10 is -27/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
45/8 = 45 × 5/8 × 5 = 225/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
63/10 = 63 × 4/10 × 4 = 252/40 - Subtract the two like fractions:
225/40 - 252/40 = 225 - 252/40 = -27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8-63/10 45/16-63/10 45/8-63/20 45/24-63/10 45/8-63/30 45/40-63/10 45/8-63/50 45/56-63/10 45/8-63/70