Subtract 27/16 from 20/36
1st number: 20/36, 2nd number: 1 11/16
20/36 - 27/16 is -163/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
20/36 = 20 × 4/36 × 4 = 80/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
27/16 = 27 × 9/16 × 9 = 243/144 - Subtract the two like fractions:
80/144 - 243/144 = 80 - 243/144 = -163/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36-27/16 20/36-54/16 20/72-27/16 20/36-27/32 60/36-27/16 20/36-81/16 20/36-27/48 20/36-27/80