Subtract 28/50 from 6/81
6/81 - 28/50 is -328/675.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 50 is 4050
Next, find the equivalent fraction of both fractional numbers with denominator 4050 - For the 1st fraction, since 81 × 50 = 4050,
6/81 = 6 × 50/81 × 50 = 300/4050 - Likewise, for the 2nd fraction, since 50 × 81 = 4050,
28/50 = 28 × 81/50 × 81 = 2268/4050 - Subtract the two like fractions:
300/4050 - 2268/4050 = 300 - 2268/4050 = -1968/4050 - After reducing the fraction, the answer is -328/675
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/81-28/50 6/81-56/50 18/81-28/50 6/81-84/50 30/81-28/50 42/81-28/50