Subtract 15/20 from 12/16
12/16 - 15/20 is 0/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
12/16 = 12 × 5/16 × 5 = 60/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
15/20 = 15 × 4/20 × 4 = 60/80 - Subtract the two like fractions:
60/80 - 60/80 = 60 - 60/80 = 0/80 - The answer is 0
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/16-15/20 12/16-30/20 12/32-15/20 12/16-15/40 36/16-15/20 12/16-45/20 12/48-15/20 12/16-15/60 60/16-15/20 12/16-75/20 12/80-15/20 84/16-15/20