Subtract 75/9 from 21/75
1st number: 21/75, 2nd number: 8 3/9
21/75 - 75/9 is -604/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
21/75 = 21 × 3/75 × 3 = 63/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
75/9 = 75 × 25/9 × 25 = 1875/225 - Subtract the two like fractions:
63/225 - 1875/225 = 63 - 1875/225 = -1812/225 - After reducing the fraction, the answer is -604/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/75-75/9 21/75-75/18 63/75-75/9 21/75-75/27 21/75-75/45 21/75-75/63