Subtract 5/6 from 21/75
21/75 - 5/6 is -83/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 6 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
21/75 = 21 × 2/75 × 2 = 42/150 - Likewise, for the 2nd fraction, since 6 × 25 = 150,
5/6 = 5 × 25/6 × 25 = 125/150 - Subtract the two like fractions:
42/150 - 125/150 = 42 - 125/150 = -83/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75-5/6 21/75-10/6 21/75-5/12 63/75-5/6 21/75-15/6 21/75-5/18 21/75-25/6 21/75-5/30 21/75-35/6 21/75-5/42