Subtract 15/50 from 20/32
20/32 - 15/50 is 13/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 50 is 800
Next, find the equivalent fraction of both fractional numbers with denominator 800 - For the 1st fraction, since 32 × 25 = 800,
20/32 = 20 × 25/32 × 25 = 500/800 - Likewise, for the 2nd fraction, since 50 × 16 = 800,
15/50 = 15 × 16/50 × 16 = 240/800 - Subtract the two like fractions:
500/800 - 240/800 = 500 - 240/800 = 260/800 - After reducing the fraction, the answer is 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/32-15/50 20/32-30/50 20/64-15/50 60/32-15/50 20/32-45/50 20/96-15/50 20/32-75/50