Subtract 12/54 from 9/28
9/28 - 12/54 is 25/252.
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,
9/28 = 9 × 27/28 × 27 = 243/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
12/54 = 12 × 14/54 × 14 = 168/756 - Subtract the two like fractions:
243/756 - 168/756 = 243 - 168/756 = 75/756 - After reducing the fraction, the answer is 25/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/28-12/54 9/28-24/54 9/56-12/54 27/28-12/54 9/28-36/54 9/84-12/54 45/28-12/54 9/28-60/54 63/28-12/54 9/28-84/54