Subtract 21/50 from 28/4
1st number: 7 0/4, 2nd number: 21/50
28/4 - 21/50 is 329/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 50 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
28/4 = 28 × 25/4 × 25 = 700/100 - Likewise, for the 2nd fraction, since 50 × 2 = 100,
21/50 = 21 × 2/50 × 2 = 42/100 - Subtract the two like fractions:
700/100 - 42/100 = 700 - 42/100 = 658/100 - After reducing the fraction, the answer is 329/50
- In mixed form: 629/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4-21/50 28/4-42/50 28/8-21/50 84/4-21/50 28/4-63/50 28/12-21/50 28/20-21/50