Subtract 6/20 from 12/80
12/80 - 6/20 is -3/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
6/20 = 6 × 4/20 × 4 = 24/80 - Subtract the two like fractions:
12/80 - 24/80 = 12 - 24/80 = -12/80 - After reducing the fraction, the answer is -3/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/80-6/20 12/80-12/20 12/80-6/40 36/80-6/20 12/80-18/20 12/80-6/60 60/80-6/20 12/80-30/20 84/80-6/20 12/80-42/20