Subtract 25/18 from 50/45
1st number: 1 5/45, 2nd number: 1 7/18
50/45 - 25/18 is -5/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
50/45 = 50 × 2/45 × 2 = 100/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
25/18 = 25 × 5/18 × 5 = 125/90 - Subtract the two like fractions:
100/90 - 125/90 = 100 - 125/90 = -25/90 - After reducing the fraction, the answer is -5/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/45-50/18 50/90-25/18 50/45-25/36 50/45-75/18 50/45-25/54 50/45-25/90