Subtract 12/80 from 1/5
1/5 - 12/80 is 1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
1/5 = 1 × 16/5 × 16 = 16/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Subtract the two like fractions:
16/80 - 12/80 = 16 - 12/80 = 4/80 - After reducing the fraction, the answer is 1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5-12/80 1/5-24/80 1/10-12/80 3/5-12/80 1/5-36/80 1/15-12/80 1/5-60/80 1/25-12/80 7/5-12/80 1/5-84/80 1/35-12/80