Subtract 1/80 from 7/8
7/8 - 1/80 is 69/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 8 × 10 = 80,
7/8 = 7 × 10/8 × 10 = 70/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
1/80 = 1 × 1/80 × 1 = 1/80 - Subtract the two like fractions:
70/80 - 1/80 = 70 - 1/80 = 69/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8-1/80 7/8-2/80 7/16-1/80 21/8-1/80 7/8-3/80 7/24-1/80 35/8-1/80 7/8-5/80 7/40-1/80 49/8-1/80 7/8-7/80 7/56-1/80