Subtract 84/40 from 7/56
1st number: 7/56, 2nd number: 2 4/40
7/56 - 84/40 is -79/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
7/56 = 7 × 5/56 × 5 = 35/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
84/40 = 84 × 7/40 × 7 = 588/280 - Subtract the two like fractions:
35/280 - 588/280 = 35 - 588/280 = -553/280 - After reducing the fraction, the answer is -79/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/56-84/40 7/56-84/80 21/56-84/40 35/56-84/40 49/56-84/40