Subtract 27/25 from 21/2
1st number: 10 1/2, 2nd number: 1 2/25
21/2 - 27/25 is 471/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 25 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 2 × 25 = 50,
21/2 = 21 × 25/2 × 25 = 525/50 - Likewise, for the 2nd fraction, since 25 × 2 = 50,
27/25 = 27 × 2/25 × 2 = 54/50 - Subtract the two like fractions:
525/50 - 54/50 = 525 - 54/50 = 471/50 - In mixed form: 921/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2-27/25 21/2-54/25 21/4-27/25 21/2-27/50 63/2-27/25 21/2-81/25 21/6-27/25 21/2-27/75 21/10-27/25 21/14-27/25