Subtract 21/42 from 25/3
1st number: 8 1/3, 2nd number: 21/42
25/3 - 21/42 is 47/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
25/3 = 25 × 14/3 × 14 = 350/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
21/42 = 21 × 1/42 × 1 = 21/42 - Subtract the two like fractions:
350/42 - 21/42 = 350 - 21/42 = 329/42 - After reducing the fraction, the answer is 47/6
- In mixed form: 75/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/3-21/42 25/6-21/42 25/3-21/84 75/3-21/42 25/3-63/42 25/9-21/42 25/15-21/42 25/21-21/42