Subtract 7/80 from 8/10
8/10 - 7/80 is 57/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
8/10 = 8 × 8/10 × 8 = 64/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
7/80 = 7 × 1/80 × 1 = 7/80 - Subtract the two like fractions:
64/80 - 7/80 = 64 - 7/80 = 57/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10-7/80 8/10-14/80 8/20-7/80 24/10-7/80 8/10-21/80 8/30-7/80 40/10-7/80 8/10-35/80 8/50-7/80 56/10-7/80 8/10-49/80 8/70-7/80