Subtract 50/45 from 9/18
1st number: 9/18, 2nd number: 1 5/45
9/18 - 50/45 is -11/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
9/18 = 9 × 5/18 × 5 = 45/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
50/45 = 50 × 2/45 × 2 = 100/90 - Subtract the two like fractions:
45/90 - 100/90 = 45 - 100/90 = -55/90 - After reducing the fraction, the answer is -11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 9/36-50/45 9/18-50/90 27/18-50/45 9/54-50/45 45/18-50/45 9/90-50/45 63/18-50/45