Subtract 45/9 from 5/2
1st number: 2 1/2, 2nd number: 5 0/9
5/2 - 45/9 is -5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
5/2 = 5 × 9/2 × 9 = 45/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
45/9 = 45 × 2/9 × 2 = 90/18 - Subtract the two like fractions:
45/18 - 90/18 = 45 - 90/18 = -45/18 - After reducing the fraction, the answer is -5/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/2-45/9 5/2-90/9 5/4-45/9 5/2-45/18 15/2-45/9 5/6-45/9 5/2-45/27 25/2-45/9 5/10-45/9 35/2-45/9 5/14-45/9 5/2-45/63