Subtract 6/10 from 81/80
1st number: 1 1/80, 2nd number: 6/10
81/80 - 6/10 is 33/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
81/80 = 81 × 1/80 × 1 = 81/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
6/10 = 6 × 8/10 × 8 = 48/80 - Subtract the two like fractions:
81/80 - 48/80 = 81 - 48/80 = 33/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/80-12/10 81/80-6/20 81/80-18/10 81/80-6/30 81/80-30/10 81/80-6/50 81/80-42/10 81/80-6/70