Subtract 21/9 from 54/25
1st number: 2 4/25, 2nd number: 2 3/9
54/25 - 21/9 is -13/75.
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,
54/25 = 54 × 9/25 × 9 = 486/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
21/9 = 21 × 25/9 × 25 = 525/225 - Subtract the two like fractions:
486/225 - 525/225 = 486 - 525/225 = -39/225 - After reducing the fraction, the answer is -13/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/25-42/9 54/50-21/9 54/25-21/18 54/25-63/9 54/75-21/9 54/25-21/27 54/25-21/45 54/25-21/63