Subtract 6/21 from 3/5
3/5 - 6/21 is 11/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
3/5 = 3 × 21/5 × 21 = 63/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
6/21 = 6 × 5/21 × 5 = 30/105 - Subtract the two like fractions:
63/105 - 30/105 = 63 - 30/105 = 33/105 - After reducing the fraction, the answer is 11/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5-6/21 3/5-12/21 3/10-6/21 3/5-6/42 9/5-6/21 3/5-18/21 3/15-6/21 3/5-6/63 15/5-6/21 3/5-30/21 3/25-6/21 21/5-6/21 3/5-42/21 3/35-6/21