Subtract 40/5 from 20/10
1st number: 2 0/10, 2nd number: 8 0/5
20/10 - 40/5 is -6/1.
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,
20/10 = 20 × 1/10 × 1 = 20/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
40/5 = 40 × 2/5 × 2 = 80/10 - Subtract the two like fractions:
20/10 - 80/10 = 20 - 80/10 = -60/10 - After reducing the fraction, the answer is -6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/10-40/5 20/10-80/5 20/10-40/10 60/10-40/5 20/30-40/5 20/10-40/15 20/50-40/5 20/10-40/25 20/70-40/5 20/10-40/35