Subtract 15/4 from 20/16
1st number: 1 4/16, 2nd number: 3 3/4
20/16 - 15/4 is -5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 4 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 16 × 1 = 16,
20/16 = 20 × 1/16 × 1 = 20/16 - Likewise, for the 2nd fraction, since 4 × 4 = 16,
15/4 = 15 × 4/4 × 4 = 60/16 - Subtract the two like fractions:
20/16 - 60/16 = 20 - 60/16 = -40/16 - After reducing the fraction, the answer is -5/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/16-15/4 20/16-30/4 20/32-15/4 20/16-15/8 60/16-15/4 20/16-45/4 20/48-15/4 20/16-15/12 20/16-75/4 20/80-15/4 20/16-15/20 20/16-15/28