Subtract 6/54 from 7/84
7/84 - 6/54 is -1/36.
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,
7/84 = 7 × 9/84 × 9 = 63/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
6/54 = 6 × 14/54 × 14 = 84/756 - Subtract the two like fractions:
63/756 - 84/756 = 63 - 84/756 = -21/756 - After reducing the fraction, the answer is -1/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/84-6/54 7/84-12/54 21/84-6/54 7/84-18/54 35/84-6/54 7/84-30/54 49/84-6/54 7/84-42/54