Subtract 28/16 from 3/9
1st number: 3/9, 2nd number: 1 12/16
3/9 - 28/16 is -17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
3/9 = 3 × 16/9 × 16 = 48/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
28/16 = 28 × 9/16 × 9 = 252/144 - Subtract the two like fractions:
48/144 - 252/144 = 48 - 252/144 = -204/144 - After reducing the fraction, the answer is -17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/9-28/16 3/9-56/16 3/18-28/16 3/9-28/32 3/9-84/16 3/27-28/16 3/9-28/48 15/9-28/16 3/45-28/16 3/9-28/80 21/9-28/16 3/63-28/16