Subtract 24/10 from 21/5
1st number: 4 1/5, 2nd number: 2 4/10
21/5 - 24/10 is 9/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 5 × 2 = 10,
21/5 = 21 × 2/5 × 2 = 42/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
24/10 = 24 × 1/10 × 1 = 24/10 - Subtract the two like fractions:
42/10 - 24/10 = 42 - 24/10 = 18/10 - After reducing the fraction, the answer is 9/5
- In mixed form: 14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/5-24/10 21/5-48/10 21/10-24/10 21/5-24/20 63/5-24/10 21/5-72/10 21/15-24/10 21/5-24/30 21/25-24/10 21/5-24/50 21/35-24/10 21/5-24/70