Subtract 56/4 from 20/18
1st number: 1 2/18, 2nd number: 14 0/4
20/18 - 56/4 is -116/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
20/18 = 20 × 2/18 × 2 = 40/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
56/4 = 56 × 9/4 × 9 = 504/36 - Subtract the two like fractions:
40/36 - 504/36 = 40 - 504/36 = -464/36 - After reducing the fraction, the answer is -116/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/18-56/4 20/36-56/4 20/18-56/8 60/18-56/4 20/54-56/4 20/18-56/12 20/90-56/4 20/18-56/20 20/18-56/28