Subtract 42/54 from 4/49
4/49 - 42/54 is -307/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 54 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 49 × 54 = 2646,
4/49 = 4 × 54/49 × 54 = 216/2646 - Likewise, for the 2nd fraction, since 54 × 49 = 2646,
42/54 = 42 × 49/54 × 49 = 2058/2646 - Subtract the two like fractions:
216/2646 - 2058/2646 = 216 - 2058/2646 = -1842/2646 - After reducing the fraction, the answer is -307/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/49-42/54 4/49-84/54 4/98-42/54 12/49-42/54 20/49-42/54 28/49-42/54