Subtract 45/18 from 10/2
1st number: 5 0/2, 2nd number: 2 9/18
10/2 - 45/18 is 5/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
10/2 = 10 × 9/2 × 9 = 90/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
45/18 = 45 × 1/18 × 1 = 45/18 - Subtract the two like fractions:
90/18 - 45/18 = 90 - 45/18 = 45/18 - After reducing the fraction, the answer is 5/2
- In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/2-45/18 10/2-90/18 10/4-45/18 10/2-45/36 30/2-45/18 10/6-45/18 10/2-45/54 50/2-45/18 10/2-45/90 70/2-45/18 10/14-45/18