Subtract 18/45 from 27/25
1st number: 1 2/25, 2nd number: 18/45
27/25 - 18/45 is 17/25.
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,
27/25 = 27 × 9/25 × 9 = 243/225 - Likewise, for the 2nd fraction, since 45 × 5 = 225,
18/45 = 18 × 5/45 × 5 = 90/225 - Subtract the two like fractions:
243/225 - 90/225 = 243 - 90/225 = 153/225 - After reducing the fraction, the answer is 17/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/25-18/45 27/25-36/45 27/50-18/45 27/25-18/90 81/25-18/45 27/25-54/45 27/75-18/45 27/25-90/45