Subtract 18/36 from 45/75
45/75 - 18/36 is 1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 75 × 12 = 900,
45/75 = 45 × 12/75 × 12 = 540/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
18/36 = 18 × 25/36 × 25 = 450/900 - Subtract the two like fractions:
540/900 - 450/900 = 540 - 450/900 = 90/900 - After reducing the fraction, the answer is 1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75-18/36 45/75-18/72 45/75-54/36 45/75-90/36