Subtract 28/18 from 8/4
1st number: 2 0/4, 2nd number: 1 10/18
8/4 - 28/18 is 4/9.
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,
8/4 = 8 × 9/4 × 9 = 72/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
28/18 = 28 × 2/18 × 2 = 56/36 - Subtract the two like fractions:
72/36 - 56/36 = 72 - 56/36 = 16/36 - After reducing the fraction, the answer is 4/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4-28/18 8/4-56/18 8/4-28/36 24/4-28/18 8/4-84/18 8/12-28/18 8/4-28/54 40/4-28/18 8/20-28/18 8/4-28/90 56/4-28/18 8/28-28/18