Subtract 25/36 from 20/75
20/75 - 25/36 is -77/180.
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,
20/75 = 20 × 12/75 × 12 = 240/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
25/36 = 25 × 25/36 × 25 = 625/900 - Subtract the two like fractions:
240/900 - 625/900 = 240 - 625/900 = -385/900 - After reducing the fraction, the answer is -77/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75-25/36 20/75-50/36 20/75-25/72 60/75-25/36 20/75-75/36