Subtract 27/36 from 4/45
4/45 - 27/36 is -119/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
4/45 = 4 × 4/45 × 4 = 16/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
27/36 = 27 × 5/36 × 5 = 135/180 - Subtract the two like fractions:
16/180 - 135/180 = 16 - 135/180 = -119/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-27/36 4/45-54/36 4/90-27/36 4/45-27/72 12/45-27/36 4/45-81/36 20/45-27/36 28/45-27/36