Subtract 8/21 from 35/10
1st number: 3 5/10, 2nd number: 8/21
35/10 - 8/21 is 131/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
35/10 = 35 × 21/10 × 21 = 735/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
8/21 = 8 × 10/21 × 10 = 80/210 - Subtract the two like fractions:
735/210 - 80/210 = 735 - 80/210 = 655/210 - After reducing the fraction, the answer is 131/42
- In mixed form: 35/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10-8/21 35/10-16/21 35/20-8/21 35/10-8/42 35/10-24/21 35/30-8/21 35/10-8/63 35/10-40/21 35/50-8/21 35/10-56/21 35/70-8/21