Subtract 1/54 from 1/84
1/84 - 1/54 is -5/756.
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,
1/84 = 1 × 9/84 × 9 = 9/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
1/54 = 1 × 14/54 × 14 = 14/756 - Subtract the two like fractions:
9/756 - 14/756 = 9 - 14/756 = -5/756
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/84-1/54 1/84-2/54 3/84-1/54 1/84-3/54 5/84-1/54 1/84-5/54 7/84-1/54 1/84-7/54