Subtract 18/25 from 3/9
3/9 - 18/25 is -29/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 9 × 25 = 225,
3/9 = 3 × 25/9 × 25 = 75/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
18/25 = 18 × 9/25 × 9 = 162/225 - Subtract the two like fractions:
75/225 - 162/225 = 75 - 162/225 = -87/225 - After reducing the fraction, the answer is -29/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9-18/25 3/9-36/25 3/18-18/25 3/9-18/50 3/9-54/25 3/27-18/25 3/9-18/75 15/9-18/25 3/9-90/25 3/45-18/25 21/9-18/25 3/63-18/25