Subtract 3/18 from 28/8
1st number: 3 4/8, 2nd number: 3/18
28/8 - 3/18 is 10/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
28/8 = 28 × 9/8 × 9 = 252/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
3/18 = 3 × 4/18 × 4 = 12/72 - Subtract the two like fractions:
252/72 - 12/72 = 252 - 12/72 = 240/72 - After reducing the fraction, the answer is 10/3
- In mixed form: 31/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8-3/18 28/8-6/18 28/16-3/18 28/8-3/36 84/8-3/18 28/8-9/18 28/24-3/18 28/8-3/54 28/8-15/18 28/40-3/18 28/8-3/90 28/8-21/18 28/56-3/18