Subtract 56/49 from 9/40
1st number: 9/40, 2nd number: 1 7/49
9/40 - 56/49 is -257/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
9/40 = 9 × 49/40 × 49 = 441/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
56/49 = 56 × 40/49 × 40 = 2240/1960 - Subtract the two like fractions:
441/1960 - 2240/1960 = 441 - 2240/1960 = -1799/1960 - After reducing the fraction, the answer is -257/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/40-56/49 9/80-56/49 9/40-56/98 27/40-56/49 45/40-56/49 63/40-56/49