Subtract 7/21 from 24/10
1st number: 2 4/10, 2nd number: 7/21
24/10 - 7/21 is 31/15.
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,
24/10 = 24 × 21/10 × 21 = 504/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
7/21 = 7 × 10/21 × 10 = 70/210 - Subtract the two like fractions:
504/210 - 70/210 = 504 - 70/210 = 434/210 - After reducing the fraction, the answer is 31/15
- In mixed form: 21/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/10-7/21 24/10-14/21 24/20-7/21 24/10-7/42 72/10-7/21 24/30-7/21 24/10-7/63 24/10-35/21 24/50-7/21 24/10-49/21 24/70-7/21