Subtract 6/70 from 4/21
4/21 - 6/70 is 11/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
4/21 = 4 × 10/21 × 10 = 40/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210 - Subtract the two like fractions:
40/210 - 18/210 = 40 - 18/210 = 22/210 - After reducing the fraction, the answer is 11/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/21-6/70 4/21-12/70 4/42-6/70 12/21-6/70 4/21-18/70 4/63-6/70 20/21-6/70 4/21-30/70 28/21-6/70 4/21-42/70