Subtract 35/4 from 25/21
1st number: 1 4/21, 2nd number: 8 3/4
25/21 - 35/4 is -635/84.
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,
35/4 = 35 × 21/4 × 21 = 735/84 - Subtract the two like fractions:
100/84 - 735/84 = 100 - 735/84 = -635/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21-35/4 25/21-70/4 25/42-35/4 25/21-35/8 75/21-35/4 25/63-35/4 25/21-35/12 25/21-35/20 25/21-35/28