Subtract 15/10 from 16/20
1st number: 16/20, 2nd number: 1 5/10
16/20 - 15/10 is -7/10.
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,
16/20 = 16 × 1/20 × 1 = 16/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
15/10 = 15 × 2/10 × 2 = 30/20 - Subtract the two like fractions:
16/20 - 30/20 = 16 - 30/20 = -14/20 - After reducing the fraction, the answer is -7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20-15/10 16/20-30/10 16/40-15/10 16/20-15/20 48/20-15/10 16/20-45/10 16/60-15/10 16/20-15/30 80/20-15/10 16/20-75/10 16/20-15/50 16/20-15/70