Subtract 56/54 from 12/28
1st number: 12/28, 2nd number: 1 2/54
12/28 - 56/54 is -115/189.
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,
12/28 = 12 × 27/28 × 27 = 324/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
56/54 = 56 × 14/54 × 14 = 784/756 - Subtract the two like fractions:
324/756 - 784/756 = 324 - 784/756 = -460/756 - After reducing the fraction, the answer is -115/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/28-56/54 12/56-56/54 36/28-56/54 12/84-56/54 60/28-56/54 84/28-56/54