Subtract 6/42 from 49/54
49/54 - 6/42 is 289/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
49/54 = 49 × 7/54 × 7 = 343/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
6/42 = 6 × 9/42 × 9 = 54/378 - Subtract the two like fractions:
343/378 - 54/378 = 343 - 54/378 = 289/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/54-6/42 49/54-12/42 49/54-6/84 49/54-18/42 49/54-30/42