Subtract 49/54 from 6/7
6/7 - 49/54 is -19/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
6/7 = 6 × 54/7 × 54 = 324/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
49/54 = 49 × 7/54 × 7 = 343/378 - Subtract the two like fractions:
324/378 - 343/378 = 324 - 343/378 = -19/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/7-49/54 6/7-98/54 6/14-49/54 18/7-49/54 6/21-49/54 30/7-49/54 6/35-49/54 42/7-49/54 6/49-49/54