Subtract 28/60 from 12/9
1st number: 1 3/9, 2nd number: 28/60
12/9 - 28/60 is 13/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
12/9 = 12 × 20/9 × 20 = 240/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
28/60 = 28 × 3/60 × 3 = 84/180 - Subtract the two like fractions:
240/180 - 84/180 = 240 - 84/180 = 156/180 - After reducing the fraction, the answer is 13/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9-28/60 12/9-56/60 12/18-28/60 36/9-28/60 12/9-84/60 12/27-28/60 60/9-28/60 12/45-28/60 84/9-28/60 12/63-28/60