Subtract 1/21 from 5/25
5/25 - 1/21 is 16/105.
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,
5/25 = 5 × 21/25 × 21 = 105/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
1/21 = 1 × 25/21 × 25 = 25/525 - Subtract the two like fractions:
105/525 - 25/525 = 105 - 25/525 = 80/525 - After reducing the fraction, the answer is 16/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/25-1/21 5/25-2/21 5/50-1/21 5/25-1/42 15/25-1/21 5/25-3/21 5/75-1/21 5/25-1/63 5/25-5/21 35/25-1/21 5/25-7/21