Subtract 3/54 from 28/84
28/84 - 3/54 is 5/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
28/84 = 28 × 9/84 × 9 = 252/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
3/54 = 3 × 14/54 × 14 = 42/756 - Subtract the two like fractions:
252/756 - 42/756 = 252 - 42/756 = 210/756 - After reducing the fraction, the answer is 5/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84-3/54 28/84-6/54 28/84-9/54 28/84-15/54 28/84-21/54