Subtract 1/80 from 8/12
8/12 - 1/80 is 157/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
8/12 = 8 × 20/12 × 20 = 160/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
1/80 = 1 × 3/80 × 3 = 3/240 - Subtract the two like fractions:
160/240 - 3/240 = 160 - 3/240 = 157/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/12-1/80 8/12-2/80 8/24-1/80 24/12-1/80 8/12-3/80 8/36-1/80 40/12-1/80 8/12-5/80 8/60-1/80 56/12-1/80 8/12-7/80 8/84-1/80