Subtract 40/56 from 4/49
4/49 - 40/56 is -31/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 56 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
4/49 = 4 × 8/49 × 8 = 32/392 - Likewise, for the 2nd fraction, since 56 × 7 = 392,
40/56 = 40 × 7/56 × 7 = 280/392 - Subtract the two like fractions:
32/392 - 280/392 = 32 - 280/392 = -248/392 - After reducing the fraction, the answer is -31/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/49-40/56 4/49-80/56 4/98-40/56 12/49-40/56 20/49-40/56 28/49-40/56