Subtract 54/21 from 24/10
1st number: 2 4/10, 2nd number: 2 12/21
24/10 - 54/21 is -6/35.
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,
54/21 = 54 × 10/21 × 10 = 540/210 - Subtract the two like fractions:
504/210 - 540/210 = 504 - 540/210 = -36/210 - After reducing the fraction, the answer is -6/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/10-54/21 24/20-54/21 24/10-54/42 72/10-54/21 24/30-54/21 24/10-54/63 24/50-54/21 24/70-54/21