Subtract 14/4 from 25/21
1st number: 1 4/21, 2nd number: 3 2/4
25/21 - 14/4 is -97/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
25/21 = 25 × 4/21 × 4 = 100/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
14/4 = 14 × 21/4 × 21 = 294/84 - Subtract the two like fractions:
100/84 - 294/84 = 100 - 294/84 = -194/84 - After reducing the fraction, the answer is -97/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21-14/4 25/21-28/4 25/42-14/4 25/21-14/8 75/21-14/4 25/21-42/4 25/63-14/4 25/21-14/12 25/21-70/4 25/21-14/20 25/21-98/4 25/21-14/28