Subtract 15/25 from 3/9
3/9 - 15/25 is -4/15.
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,
15/25 = 15 × 9/25 × 9 = 135/225 - Subtract the two like fractions:
75/225 - 135/225 = 75 - 135/225 = -60/225 - After reducing the fraction, the answer is -4/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9-15/25 3/9-30/25 3/18-15/25 3/9-15/50 3/9-45/25 3/27-15/25 3/9-15/75 15/9-15/25 3/9-75/25 3/45-15/25 21/9-15/25 3/63-15/25