Subtract 7/36 from 18/45
18/45 - 7/36 is 37/180.
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,
7/36 = 7 × 5/36 × 5 = 35/180 - Subtract the two like fractions:
72/180 - 35/180 = 72 - 35/180 = 37/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45-7/36 18/45-14/36 18/90-7/36 18/45-7/72 54/45-7/36 18/45-21/36 90/45-7/36 18/45-35/36 18/45-49/36