Subtract 84/8 from 16/9
1st number: 1 7/9, 2nd number: 10 4/8
16/9 - 84/8 is -157/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
16/9 = 16 × 8/9 × 8 = 128/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
84/8 = 84 × 9/8 × 9 = 756/72 - Subtract the two like fractions:
128/72 - 756/72 = 128 - 756/72 = -628/72 - After reducing the fraction, the answer is -157/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/9-84/8 16/18-84/8 16/9-84/16 48/9-84/8 16/27-84/8 16/9-84/24 80/9-84/8 16/45-84/8 16/9-84/40 16/63-84/8 16/9-84/56