Subtract 4/10 from 2/80
2/80 - 4/10 is -3/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
2/80 = 2 × 1/80 × 1 = 2/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
4/10 = 4 × 8/10 × 8 = 32/80 - Subtract the two like fractions:
2/80 - 32/80 = 2 - 32/80 = -30/80 - After reducing the fraction, the answer is -3/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/80-4/10 2/80-8/10 2/80-4/20 6/80-4/10 2/80-12/10 2/80-4/30 10/80-4/10 2/80-20/10 2/80-4/50 14/80-4/10 2/80-28/10 2/80-4/70