Subtract 6/75 from 12/21
12/21 - 6/75 is 86/175.
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,
12/21 = 12 × 25/21 × 25 = 300/525 - Likewise, for the 2nd fraction, since 75 × 7 = 525,
6/75 = 6 × 7/75 × 7 = 42/525 - Subtract the two like fractions:
300/525 - 42/525 = 300 - 42/525 = 258/525 - After reducing the fraction, the answer is 86/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/21-6/75 12/21-12/75 12/42-6/75 36/21-6/75 12/21-18/75 12/63-6/75 60/21-6/75 12/21-30/75 84/21-6/75 12/21-42/75