Subtract 21/8 from 80/6
1st number: 13 2/6, 2nd number: 2 5/8
80/6 - 21/8 is 257/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 6 × 4 = 24,
80/6 = 80 × 4/6 × 4 = 320/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Subtract the two like fractions:
320/24 - 63/24 = 320 - 63/24 = 257/24 - In mixed form: 1017/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-42/8 80/12-21/8 80/6-21/16 80/6-63/8 80/18-21/8 80/6-21/24 80/30-21/8 80/6-21/40 80/42-21/8 80/6-21/56