Subtract 75/54 from 10/28
1st number: 10/28, 2nd number: 1 21/54
10/28 - 75/54 is -65/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
10/28 = 10 × 27/28 × 27 = 270/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
75/54 = 75 × 14/54 × 14 = 1050/756 - Subtract the two like fractions:
270/756 - 1050/756 = 270 - 1050/756 = -780/756 - After reducing the fraction, the answer is -65/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/28-75/54 10/56-75/54 30/28-75/54 10/84-75/54 50/28-75/54 70/28-75/54