Subtract 8/5 from 40/63
1st number: 40/63, 2nd number: 1 3/5
40/63 - 8/5 is -304/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 5 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
40/63 = 40 × 5/63 × 5 = 200/315 - Likewise, for the 2nd fraction, since 5 × 63 = 315,
8/5 = 8 × 63/5 × 63 = 504/315 - Subtract the two like fractions:
200/315 - 504/315 = 200 - 504/315 = -304/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63-8/5 40/63-16/5 40/63-8/10 40/63-24/5 40/63-8/15 40/63-40/5 40/63-8/25 40/63-56/5 40/63-8/35