Subtract 25/80 from 84/21
1st number: 4 0/21, 2nd number: 25/80
84/21 - 25/80 is 59/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
84/21 = 84 × 80/21 × 80 = 6720/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
25/80 = 25 × 21/80 × 21 = 525/1680 - Subtract the two like fractions:
6720/1680 - 525/1680 = 6720 - 525/1680 = 6195/1680 - After reducing the fraction, the answer is 59/16
- In mixed form: 311/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/21-50/80 84/42-25/80 84/21-75/80 84/63-25/80