Subtract 56/20 from 14/18
1st number: 14/18, 2nd number: 2 16/20
14/18 - 56/20 is -91/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 18 × 10 = 180,
14/18 = 14 × 10/18 × 10 = 140/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
56/20 = 56 × 9/20 × 9 = 504/180 - Subtract the two like fractions:
140/180 - 504/180 = 140 - 504/180 = -364/180 - After reducing the fraction, the answer is -91/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/18-56/20 14/36-56/20 14/18-56/40 42/18-56/20 14/54-56/20 14/18-56/60 70/18-56/20 14/90-56/20 98/18-56/20