Subtract 28/18 from 6/8
1st number: 6/8, 2nd number: 1 10/18
6/8 - 28/18 is -29/36.
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,
6/8 = 6 × 9/8 × 9 = 54/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
28/18 = 28 × 4/18 × 4 = 112/72 - Subtract the two like fractions:
54/72 - 112/72 = 54 - 112/72 = -58/72 - After reducing the fraction, the answer is -29/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/8-28/18 6/8-56/18 6/16-28/18 6/8-28/36 18/8-28/18 6/8-84/18 6/24-28/18 6/8-28/54 30/8-28/18 6/40-28/18 6/8-28/90 42/8-28/18 6/56-28/18