Subtract 15/36 from 10/20
10/20 - 15/36 is 1/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
10/20 = 10 × 9/20 × 9 = 90/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
15/36 = 15 × 5/36 × 5 = 75/180 - Subtract the two like fractions:
90/180 - 75/180 = 90 - 75/180 = 15/180 - After reducing the fraction, the answer is 1/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/20-30/36 10/40-15/36 10/20-15/72 30/20-15/36 10/20-45/36 10/60-15/36 50/20-15/36 10/20-75/36 70/20-15/36