Subtract 12/27 from 6/20
6/20 - 12/27 is -13/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
6/20 = 6 × 27/20 × 27 = 162/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
12/27 = 12 × 20/27 × 20 = 240/540 - Subtract the two like fractions:
162/540 - 240/540 = 162 - 240/540 = -78/540 - After reducing the fraction, the answer is -13/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-12/27 6/20-24/27 6/40-12/27 6/20-12/54 18/20-12/27 6/20-36/27 6/60-12/27 6/20-12/81 30/20-12/27 6/20-60/27 42/20-12/27 6/20-84/27