Subtract 25/18 from 18/4
1st number: 4 2/4, 2nd number: 1 7/18
18/4 - 25/18 is 28/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
18/4 = 18 × 9/4 × 9 = 162/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
25/18 = 25 × 2/18 × 2 = 50/36 - Subtract the two like fractions:
162/36 - 50/36 = 162 - 50/36 = 112/36 - After reducing the fraction, the answer is 28/9
- In mixed form: 31/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4-25/18 18/4-50/18 18/8-25/18 18/4-25/36 54/4-25/18 18/4-75/18 18/12-25/18 18/4-25/54 90/4-25/18 18/20-25/18 18/4-25/90 18/28-25/18