Subtract 2/20 from 3/80
3/80 - 2/20 is -1/16.
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,
3/80 = 3 × 1/80 × 1 = 3/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
2/20 = 2 × 4/20 × 4 = 8/80 - Subtract the two like fractions:
3/80 - 8/80 = 3 - 8/80 = -5/80 - After reducing the fraction, the answer is -1/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/80-2/20 3/80-4/20 3/80-2/40 9/80-2/20 3/80-6/20 3/80-2/60 15/80-2/20 3/80-10/20 21/80-2/20 3/80-14/20