Subtract 25/21 from 1/25
1st number: 1/25, 2nd number: 1 4/21
1/25 - 25/21 is -604/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
1/25 = 1 × 21/25 × 21 = 21/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
25/21 = 25 × 25/21 × 25 = 625/525 - Subtract the two like fractions:
21/525 - 625/525 = 21 - 625/525 = -604/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/25-25/21 1/25-50/21 1/50-25/21 1/25-25/42 3/25-25/21 1/25-75/21 1/75-25/21 1/25-25/63 5/25-25/21 7/25-25/21