Subtract 28/9 from 6/20
1st number: 6/20, 2nd number: 3 1/9
6/20 - 28/9 is -253/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
6/20 = 6 × 9/20 × 9 = 54/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
28/9 = 28 × 20/9 × 20 = 560/180 - Subtract the two like fractions:
54/180 - 560/180 = 54 - 560/180 = -506/180 - After reducing the fraction, the answer is -253/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-28/9 6/20-56/9 6/40-28/9 6/20-28/18 18/20-28/9 6/20-84/9 6/60-28/9 6/20-28/27 30/20-28/9 6/20-28/45 42/20-28/9 6/20-28/63