Subtract 20/56 from 2/9
2/9 - 20/56 is -17/126.
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,
2/9 = 2 × 56/9 × 56 = 112/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
20/56 = 20 × 9/56 × 9 = 180/504 - Subtract the two like fractions:
112/504 - 180/504 = 112 - 180/504 = -68/504 - After reducing the fraction, the answer is -17/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/9-20/56 2/9-40/56 2/18-20/56 6/9-20/56 2/9-60/56 2/27-20/56 10/9-20/56 2/45-20/56 14/9-20/56 2/63-20/56