Subtract 21/12 from 4/75
1st number: 4/75, 2nd number: 1 9/12
4/75 - 21/12 is -509/300.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
4/75 = 4 × 4/75 × 4 = 16/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Subtract the two like fractions:
16/300 - 525/300 = 16 - 525/300 = -509/300
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/75-21/12 4/75-42/12 4/75-21/24 12/75-21/12 4/75-63/12 4/75-21/36 20/75-21/12 4/75-21/60 28/75-21/12 4/75-21/84