Subtract 8/21 from 84/25
1st number: 3 9/25, 2nd number: 8/21
84/25 - 8/21 is 1564/525.
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,
84/25 = 84 × 21/25 × 21 = 1764/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
8/21 = 8 × 25/21 × 25 = 200/525 - Subtract the two like fractions:
1764/525 - 200/525 = 1764 - 200/525 = 1564/525 - In mixed form: 2514/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/25-16/21 84/50-8/21 84/25-8/42 84/25-24/21 84/75-8/21 84/25-8/63 84/25-40/21 84/25-56/21