Subtract 36/72 from 24/21
1st number: 1 3/21, 2nd number: 36/72
24/21 - 36/72 is 9/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
24/21 = 24 × 24/21 × 24 = 576/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
36/72 = 36 × 7/72 × 7 = 252/504 - Subtract the two like fractions:
576/504 - 252/504 = 576 - 252/504 = 324/504 - After reducing the fraction, the answer is 9/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21-36/72 24/42-36/72 72/21-36/72 24/63-36/72