Subtract 27/18 from 14/20
1st number: 14/20, 2nd number: 1 9/18
14/20 - 27/18 is -4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
14/20 = 14 × 9/20 × 9 = 126/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
27/18 = 27 × 10/18 × 10 = 270/180 - Subtract the two like fractions:
126/180 - 270/180 = 126 - 270/180 = -144/180 - After reducing the fraction, the answer is -4/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/20-27/18 14/20-54/18 14/40-27/18 14/20-27/36 42/20-27/18 14/20-81/18 14/60-27/18 14/20-27/54 70/20-27/18 14/20-27/90 98/20-27/18