Subtract 5/75 from 4/21
4/21 - 5/75 is 13/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 75 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
4/21 = 4 × 25/21 × 25 = 100/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
5/75 = 5 × 7/75 × 7 = 35/525 - Subtract the two like fractions:
100/525 - 35/525 = 100 - 35/525 = 65/525 - After reducing the fraction, the answer is 13/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21-5/75 4/21-10/75 4/42-5/75 12/21-5/75 4/21-15/75 4/63-5/75 20/21-5/75 4/21-25/75 28/21-5/75 4/21-35/75