Subtract 28/4 from 16/9
1st number: 1 7/9, 2nd number: 7 0/4
16/9 - 28/4 is -47/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
16/9 = 16 × 4/9 × 4 = 64/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
28/4 = 28 × 9/4 × 9 = 252/36 - Subtract the two like fractions:
64/36 - 252/36 = 64 - 252/36 = -188/36 - After reducing the fraction, the answer is -47/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/9-28/4 16/9-56/4 16/18-28/4 16/9-28/8 48/9-28/4 16/9-84/4 16/27-28/4 16/9-28/12 80/9-28/4 16/45-28/4 16/9-28/20 16/63-28/4