Subtract 20/27 from 1/36
1/36 - 20/27 is -77/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 36 × 3 = 108,
1/36 = 1 × 3/36 × 3 = 3/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
20/27 = 20 × 4/27 × 4 = 80/108 - Subtract the two like fractions:
3/108 - 80/108 = 3 - 80/108 = -77/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/36-20/27 1/36-40/27 1/72-20/27 1/36-20/54 3/36-20/27 1/36-60/27 1/36-20/81 5/36-20/27 7/36-20/27