Subtract 40/50 from 7/56
7/56 - 40/50 is -27/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 50 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 56 × 25 = 1400,
7/56 = 7 × 25/56 × 25 = 175/1400 - Likewise, for the 2nd fraction, since 50 × 28 = 1400,
40/50 = 40 × 28/50 × 28 = 1120/1400 - Subtract the two like fractions:
175/1400 - 1120/1400 = 175 - 1120/1400 = -945/1400 - After reducing the fraction, the answer is -27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/56-40/50 7/56-80/50 21/56-40/50 35/56-40/50 49/56-40/50