Subtract 14/8 from 81/5
1st number: 16 1/5, 2nd number: 1 6/8
81/5 - 14/8 is 289/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
81/5 = 81 × 8/5 × 8 = 648/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
14/8 = 14 × 5/8 × 5 = 70/40 - Subtract the two like fractions:
648/40 - 70/40 = 648 - 70/40 = 578/40 - After reducing the fraction, the answer is 289/20
- In mixed form: 149/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/5-28/8 81/10-14/8 81/5-14/16 81/5-42/8 81/15-14/8 81/5-14/24 81/5-70/8 81/25-14/8 81/5-14/40 81/5-98/8 81/35-14/8 81/5-14/56