Subtract 8/4 from 15/10
1st number: 1 5/10, 2nd number: 2 0/4
15/10 - 8/4 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
15/10 = 15 × 2/10 × 2 = 30/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
8/4 = 8 × 5/4 × 5 = 40/20 - Subtract the two like fractions:
30/20 - 40/20 = 30 - 40/20 = -10/20 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10-8/4 15/10-16/4 15/20-8/4 45/10-8/4 15/10-24/4 15/30-8/4 15/10-8/12 75/10-8/4 15/10-40/4 15/50-8/4 15/10-8/20 15/10-56/4 15/70-8/4 15/10-8/28