Subtract 21/25 from 10/27
10/27 - 21/25 is -317/675.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 25 is 675
Next, find the equivalent fraction of both fractional numbers with denominator 675 - For the 1st fraction, since 27 × 25 = 675,
10/27 = 10 × 25/27 × 25 = 250/675 - Likewise, for the 2nd fraction, since 25 × 27 = 675,
21/25 = 21 × 27/25 × 27 = 567/675 - Subtract the two like fractions:
250/675 - 567/675 = 250 - 567/675 = -317/675
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/27-21/25 10/27-42/25 10/54-21/25 10/27-21/50 30/27-21/25 10/27-63/25 10/81-21/25 10/27-21/75 50/27-21/25 70/27-21/25