Subtract 12/54 from 4/28
4/28 - 12/54 is -5/63.
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,
4/28 = 4 × 27/28 × 27 = 108/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
12/54 = 12 × 14/54 × 14 = 168/756 - Subtract the two like fractions:
108/756 - 168/756 = 108 - 168/756 = -60/756 - After reducing the fraction, the answer is -5/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/28-12/54 4/28-24/54 4/56-12/54 12/28-12/54 4/28-36/54 4/84-12/54 20/28-12/54 4/28-60/54 4/28-84/54