Subtract 40/56 from 7/9
7/9 - 40/56 is 4/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 9 × 56 = 504,
7/9 = 7 × 56/9 × 56 = 392/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
40/56 = 40 × 9/56 × 9 = 360/504 - Subtract the two like fractions:
392/504 - 360/504 = 392 - 360/504 = 32/504 - After reducing the fraction, the answer is 4/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9-40/56 7/9-80/56 7/18-40/56 21/9-40/56 7/27-40/56 35/9-40/56 7/45-40/56 49/9-40/56 7/63-40/56