Subtract 40/63 from 42/5
1st number: 8 2/5, 2nd number: 40/63
42/5 - 40/63 is 2446/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 5 × 63 = 315,
42/5 = 42 × 63/5 × 63 = 2646/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
40/63 = 40 × 5/63 × 5 = 200/315 - Subtract the two like fractions:
2646/315 - 200/315 = 2646 - 200/315 = 2446/315 - In mixed form: 7241/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-40/63 42/5-80/63 42/10-40/63 42/15-40/63 42/25-40/63 42/35-40/63