Subtract 3/21 from 3/35
3/35 - 3/21 is -2/35.
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,
3/35 = 3 × 3/35 × 3 = 9/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
3/21 = 3 × 5/21 × 5 = 15/105 - Subtract the two like fractions:
9/105 - 15/105 = 9 - 15/105 = -6/105 - After reducing the fraction, the answer is -2/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/35-3/21 3/35-6/21 3/70-3/21 3/35-3/42 9/35-3/21 3/35-9/21 3/35-3/63 15/35-3/21 3/35-15/21 21/35-3/21