Subtract 24/21 from 25/4
1st number: 6 1/4, 2nd number: 1 3/21
25/4 - 24/21 is 143/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
25/4 = 25 × 21/4 × 21 = 525/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
24/21 = 24 × 4/21 × 4 = 96/84 - Subtract the two like fractions:
525/84 - 96/84 = 525 - 96/84 = 429/84 - After reducing the fraction, the answer is 143/28
- In mixed form: 53/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/4-24/21 25/4-48/21 25/8-24/21 25/4-24/42 75/4-24/21 25/4-72/21 25/12-24/21 25/4-24/63 25/20-24/21 25/28-24/21