Subtract 81/3 from 75/28
1st number: 2 19/28, 2nd number: 27 0/3
75/28 - 81/3 is -681/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
75/28 = 75 × 3/28 × 3 = 225/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
81/3 = 81 × 28/3 × 28 = 2268/84 - Subtract the two like fractions:
225/84 - 2268/84 = 225 - 2268/84 = -2043/84 - After reducing the fraction, the answer is -681/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/56-81/3 75/28-81/6 75/84-81/3 75/28-81/9 75/28-81/15 75/28-81/21