Subtract 27/15 from 28/50
1st number: 28/50, 2nd number: 1 12/15
28/50 - 27/15 is -31/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 15 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 50 × 3 = 150,
28/50 = 28 × 3/50 × 3 = 84/150 - Likewise, for the 2nd fraction, since 15 × 10 = 150,
27/15 = 27 × 10/15 × 10 = 270/150 - Subtract the two like fractions:
84/150 - 270/150 = 84 - 270/150 = -186/150 - After reducing the fraction, the answer is -31/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/50-27/15 28/50-54/15 28/50-27/30 84/50-27/15 28/50-81/15 28/50-27/45 28/50-27/75