Subtract 12/20 from 7/75
7/75 - 12/20 is -38/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
7/75 = 7 × 4/75 × 4 = 28/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
12/20 = 12 × 15/20 × 15 = 180/300 - Subtract the two like fractions:
28/300 - 180/300 = 28 - 180/300 = -152/300 - After reducing the fraction, the answer is -38/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/75-12/20 7/75-24/20 7/75-12/40 21/75-12/20 7/75-36/20 7/75-12/60 35/75-12/20 7/75-60/20 49/75-12/20 7/75-84/20