Subtract 7/45 from 18/25
18/25 - 7/45 is 127/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 45 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
18/25 = 18 × 9/25 × 9 = 162/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
7/45 = 7 × 5/45 × 5 = 35/225 - Subtract the two like fractions:
162/225 - 35/225 = 162 - 35/225 = 127/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/25-7/45 18/25-14/45 18/50-7/45 18/25-7/90 54/25-7/45 18/25-21/45 18/75-7/45 90/25-7/45 18/25-35/45 18/25-49/45