Subtract 9/54 from 2/28
2/28 - 9/54 is -2/21.
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,
2/28 = 2 × 27/28 × 27 = 54/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
9/54 = 9 × 14/54 × 14 = 126/756 - Subtract the two like fractions:
54/756 - 126/756 = 54 - 126/756 = -72/756 - After reducing the fraction, the answer is -2/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/28-9/54 2/28-18/54 2/56-9/54 6/28-9/54 2/28-27/54 2/84-9/54 10/28-9/54 2/28-45/54 14/28-9/54 2/28-63/54