Subtract 14/21 from 42/10
1st number: 4 2/10, 2nd number: 14/21
42/10 - 14/21 is 53/15.
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,
42/10 = 42 × 21/10 × 21 = 882/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210 - Subtract the two like fractions:
882/210 - 140/210 = 882 - 140/210 = 742/210 - After reducing the fraction, the answer is 53/15
- In mixed form: 38/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10-14/21 42/10-28/21 42/20-14/21 42/10-14/42 42/10-42/21 42/30-14/21 42/10-14/63 42/10-70/21 42/50-14/21 42/10-98/21 42/70-14/21