Subtract 45/36 from 20/75
1st number: 20/75, 2nd number: 1 9/36
20/75 - 45/36 is -59/60.
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,
45/36 = 45 × 25/36 × 25 = 1125/900 - Subtract the two like fractions:
240/900 - 1125/900 = 240 - 1125/900 = -885/900 - After reducing the fraction, the answer is -59/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75-45/36 20/75-90/36 20/75-45/72 60/75-45/36