Subtract 81/5 from 50/8
1st number: 6 2/8, 2nd number: 16 1/5
50/8 - 81/5 is -199/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
50/8 = 50 × 5/8 × 5 = 250/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
81/5 = 81 × 8/5 × 8 = 648/40 - Subtract the two like fractions:
250/40 - 648/40 = 250 - 648/40 = -398/40 - After reducing the fraction, the answer is -199/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/16-81/5 50/8-81/10 50/24-81/5 50/8-81/15 50/40-81/5 50/8-81/25 50/56-81/5 50/8-81/35