Subtract 21/75 from 3/6
3/6 - 21/75 is 11/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 6 × 25 = 150,
3/6 = 3 × 25/6 × 25 = 75/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
21/75 = 21 × 2/75 × 2 = 42/150 - Subtract the two like fractions:
75/150 - 42/150 = 75 - 42/150 = 33/150 - After reducing the fraction, the answer is 11/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 3/6-42/75 3/12-21/75 9/6-21/75 3/6-63/75 3/18-21/75 15/6-21/75 3/30-21/75 21/6-21/75 3/42-21/75