Subtract 2/5 from 8/10
8/10 - 2/5 is 2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 10 × 1 = 10,
8/10 = 8 × 1/10 × 1 = 8/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
2/5 = 2 × 2/5 × 2 = 4/10 - Subtract the two like fractions:
8/10 - 4/10 = 8 - 4/10 = 4/10 - After reducing the fraction, the answer is 2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10-2/5 8/10-4/5 8/20-2/5 8/10-2/10 24/10-2/5 8/10-6/5 8/30-2/5 8/10-2/15 40/10-2/5 8/10-10/5 8/50-2/5 8/10-2/25 56/10-2/5 8/10-14/5 8/70-2/5 8/10-2/35