Subtract 1/36 from 18/45
18/45 - 1/36 is 67/180.
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,
18/45 = 18 × 4/45 × 4 = 72/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
1/36 = 1 × 5/36 × 5 = 5/180 - Subtract the two like fractions:
72/180 - 5/180 = 72 - 5/180 = 67/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45-1/36 18/45-2/36 18/90-1/36 18/45-1/72 54/45-1/36 18/45-3/36 90/45-1/36 18/45-5/36 18/45-7/36