Subtract 21/9 from 5/25
1st number: 5/25, 2nd number: 2 3/9
5/25 - 21/9 is -32/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
5/25 = 5 × 9/25 × 9 = 45/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
21/9 = 21 × 25/9 × 25 = 525/225 - Subtract the two like fractions:
45/225 - 525/225 = 45 - 525/225 = -480/225 - After reducing the fraction, the answer is -32/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/25-21/9 5/25-42/9 5/50-21/9 5/25-21/18 15/25-21/9 5/25-63/9 5/75-21/9 5/25-21/27 5/25-21/45 35/25-21/9 5/25-21/63