Subtract 7/25 from 9/45
9/45 - 7/25 is -2/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
9/45 = 9 × 5/45 × 5 = 45/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
7/25 = 7 × 9/25 × 9 = 63/225 - Subtract the two like fractions:
45/225 - 63/225 = 45 - 63/225 = -18/225 - After reducing the fraction, the answer is -2/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/45-7/25 9/45-14/25 9/90-7/25 9/45-7/50 27/45-7/25 9/45-21/25 9/45-7/75 9/45-35/25 63/45-7/25 9/45-49/25