Subtract 20/56 from 8/9
8/9 - 20/56 is 67/126.
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,
8/9 = 8 × 56/9 × 56 = 448/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
20/56 = 20 × 9/56 × 9 = 180/504 - Subtract the two like fractions:
448/504 - 180/504 = 448 - 180/504 = 268/504 - After reducing the fraction, the answer is 67/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/9-20/56 8/9-40/56 8/18-20/56 24/9-20/56 8/9-60/56 8/27-20/56 40/9-20/56 8/45-20/56 56/9-20/56 8/63-20/56