Subtract 12/80 from 2/4
2/4 - 12/80 is 7/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
2/4 = 2 × 20/4 × 20 = 40/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
12/80 = 12 × 1/80 × 1 = 12/80 - Subtract the two like fractions:
40/80 - 12/80 = 40 - 12/80 = 28/80 - After reducing the fraction, the answer is 7/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-24/80 2/8-12/80 6/4-12/80 2/4-36/80 2/12-12/80 10/4-12/80 2/4-60/80 2/20-12/80 14/4-12/80 2/4-84/80 2/28-12/80