Subtract 80/63 from 42/5
1st number: 8 2/5, 2nd number: 1 17/63
42/5 - 80/63 is 2246/315.
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,
80/63 = 80 × 5/63 × 5 = 400/315 - Subtract the two like fractions:
2646/315 - 400/315 = 2646 - 400/315 = 2246/315 - In mixed form: 741/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5-80/63 42/10-80/63 42/15-80/63 42/25-80/63 42/35-80/63