Subtract 21/9 from 24/10
1st number: 2 4/10, 2nd number: 2 3/9
24/10 - 21/9 is 1/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
24/10 = 24 × 9/10 × 9 = 216/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
21/9 = 21 × 10/9 × 10 = 210/90 - Subtract the two like fractions:
216/90 - 210/90 = 216 - 210/90 = 6/90 - After reducing the fraction, the answer is 1/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/10-21/9 24/10-42/9 24/20-21/9 24/10-21/18 72/10-21/9 24/10-63/9 24/30-21/9 24/10-21/27 24/50-21/9 24/10-21/45 24/70-21/9 24/10-21/63