Subtract 6/9 from 20/56
20/56 - 6/9 is -13/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 9 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
20/56 = 20 × 9/56 × 9 = 180/504 - Likewise, for the 2nd fraction, since 9 × 56 = 504,
6/9 = 6 × 56/9 × 56 = 336/504 - Subtract the two like fractions:
180/504 - 336/504 = 180 - 336/504 = -156/504 - After reducing the fraction, the answer is -13/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56-6/9 20/56-12/9 20/56-6/18 60/56-6/9 20/56-18/9 20/56-6/27 20/56-30/9 20/56-6/45 20/56-42/9 20/56-6/63