Subtract 10/72 from 25/21
1st number: 1 4/21, 2nd number: 10/72
25/21 - 10/72 is 265/252.
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,
25/21 = 25 × 24/21 × 24 = 600/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
10/72 = 10 × 7/72 × 7 = 70/504 - Subtract the two like fractions:
600/504 - 70/504 = 600 - 70/504 = 530/504 - After reducing the fraction, the answer is 265/252
- In mixed form: 113/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21-10/72 25/21-20/72 25/42-10/72 75/21-10/72 25/21-30/72 25/63-10/72 25/21-50/72 25/21-70/72