Subtract 7/75 from 21/9
1st number: 2 3/9, 2nd number: 7/75
21/9 - 7/75 is 56/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 75 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 9 × 25 = 225,
21/9 = 21 × 25/9 × 25 = 525/225 - Likewise, for the 2nd fraction, since 75 × 3 = 225,
7/75 = 7 × 3/75 × 3 = 21/225 - Subtract the two like fractions:
525/225 - 21/225 = 525 - 21/225 = 504/225 - After reducing the fraction, the answer is 56/25
- In mixed form: 26/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/9-7/75 21/9-14/75 21/18-7/75 63/9-7/75 21/9-21/75 21/27-7/75 21/9-35/75 21/45-7/75 21/9-49/75 21/63-7/75