Subtract 28/5 from 6/18
1st number: 6/18, 2nd number: 5 3/5
6/18 - 28/5 is -79/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
6/18 = 6 × 5/18 × 5 = 30/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
28/5 = 28 × 18/5 × 18 = 504/90 - Subtract the two like fractions:
30/90 - 504/90 = 30 - 504/90 = -474/90 - After reducing the fraction, the answer is -79/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/18-28/5 6/18-56/5 6/36-28/5 6/18-28/10 6/18-84/5 6/54-28/5 6/18-28/15 30/18-28/5 6/90-28/5 6/18-28/25 42/18-28/5 6/18-28/35