Subtract 15/10 from 5/20
1st number: 5/20, 2nd number: 1 5/10
5/20 - 15/10 is -5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
5/20 = 5 × 1/20 × 1 = 5/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
15/10 = 15 × 2/10 × 2 = 30/20 - Subtract the two like fractions:
5/20 - 30/20 = 5 - 30/20 = -25/20 - After reducing the fraction, the answer is -5/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20-15/10 5/20-30/10 5/40-15/10 5/20-15/20 15/20-15/10 5/20-45/10 5/60-15/10 5/20-15/30 25/20-15/10 5/20-75/10 5/20-15/50 35/20-15/10 5/20-15/70