Subtract 3/70 from 21/6
1st number: 3 3/6, 2nd number: 3/70
21/6 - 3/70 is 121/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 6 × 35 = 210,
21/6 = 21 × 35/6 × 35 = 735/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Subtract the two like fractions:
735/210 - 9/210 = 735 - 9/210 = 726/210 - After reducing the fraction, the answer is 121/35
- In mixed form: 316/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-3/70 21/6-6/70 21/12-3/70 63/6-3/70 21/6-9/70 21/18-3/70 21/6-15/70 21/30-3/70 21/6-21/70 21/42-3/70