Subtract 6/21 from 25/35
25/35 - 6/21 is 3/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
25/35 = 25 × 3/35 × 3 = 75/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
6/21 = 6 × 5/21 × 5 = 30/105 - Subtract the two like fractions:
75/105 - 30/105 = 75 - 30/105 = 45/105 - After reducing the fraction, the answer is 3/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/35-6/21 25/35-12/21 25/70-6/21 25/35-6/42 75/35-6/21 25/35-18/21 25/35-6/63 25/35-30/21 25/35-42/21