Subtract 27/20 from 5/27
1st number: 5/27, 2nd number: 1 7/20
5/27 - 27/20 is -629/540.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
5/27 = 5 × 20/27 × 20 = 100/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
27/20 = 27 × 27/20 × 27 = 729/540 - Subtract the two like fractions:
100/540 - 729/540 = 100 - 729/540 = -629/540
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/27-27/20 5/27-54/20 5/54-27/20 5/27-27/40 15/27-27/20 5/27-81/20 5/81-27/20 5/27-27/60 25/27-27/20 35/27-27/20