Subtract 28/21 from 25/6
1st number: 4 1/6, 2nd number: 1 7/21
25/6 - 28/21 is 17/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
25/6 = 25 × 7/6 × 7 = 175/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
28/21 = 28 × 2/21 × 2 = 56/42 - Subtract the two like fractions:
175/42 - 56/42 = 175 - 56/42 = 119/42 - After reducing the fraction, the answer is 17/6
- In mixed form: 25/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/6-28/21 25/6-56/21 25/12-28/21 25/6-28/42 75/6-28/21 25/6-84/21 25/18-28/21 25/6-28/63 25/30-28/21 25/42-28/21