Subtract 3/5 from 6/80
6/80 - 3/5 is -21/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
6/80 = 6 × 1/80 × 1 = 6/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
3/5 = 3 × 16/5 × 16 = 48/80 - Subtract the two like fractions:
6/80 - 48/80 = 6 - 48/80 = -42/80 - After reducing the fraction, the answer is -21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80-3/5 6/80-6/5 6/80-3/10 18/80-3/5 6/80-9/5 6/80-3/15 30/80-3/5 6/80-15/5 6/80-3/25 42/80-3/5 6/80-21/5 6/80-3/35