Subtract 25/10 from 21/4
1st number: 5 1/4, 2nd number: 2 5/10
21/4 - 25/10 is 11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
21/4 = 21 × 5/4 × 5 = 105/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
25/10 = 25 × 2/10 × 2 = 50/20 - Subtract the two like fractions:
105/20 - 50/20 = 105 - 50/20 = 55/20 - After reducing the fraction, the answer is 11/4
- In mixed form: 23/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/4-25/10 21/4-50/10 21/8-25/10 21/4-25/20 63/4-25/10 21/4-75/10 21/12-25/10 21/4-25/30 21/20-25/10 21/4-25/50 21/28-25/10 21/4-25/70