Subtract 50/21 from 27/75
1st number: 27/75, 2nd number: 2 8/21
27/75 - 50/21 is -1061/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
27/75 = 27 × 7/75 × 7 = 189/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
50/21 = 50 × 25/21 × 25 = 1250/525 - Subtract the two like fractions:
189/525 - 1250/525 = 189 - 1250/525 = -1061/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/75-50/21 27/75-50/42 81/75-50/21 27/75-50/63