Subtract 1/5 from 80/63
1st number: 1 17/63, 2nd number: 1/5
80/63 - 1/5 is 337/315.
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,
80/63 = 80 × 5/63 × 5 = 400/315 - Likewise, for the 2nd fraction, since 5 × 63 = 315,
1/5 = 1 × 63/5 × 63 = 63/315 - Subtract the two like fractions:
400/315 - 63/315 = 400 - 63/315 = 337/315 - In mixed form: 122/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63-2/5 80/63-1/10 80/63-3/5 80/63-1/15 80/63-1/25 80/63-7/5 80/63-1/35