Subtract 3/20 from 80/63
1st number: 1 17/63, 2nd number: 3/20
80/63 - 3/20 is 1411/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
80/63 = 80 × 20/63 × 20 = 1600/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
3/20 = 3 × 63/20 × 63 = 189/1260 - Subtract the two like fractions:
1600/1260 - 189/1260 = 1600 - 189/1260 = 1411/1260 - In mixed form: 1151/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/63-6/20 80/63-3/40 80/63-9/20 80/63-3/60 80/63-15/20 80/63-21/20