Subtract 8/9 from 8/84
8/84 - 8/9 is -50/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
8/84 = 8 × 3/84 × 3 = 24/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
8/9 = 8 × 28/9 × 28 = 224/252 - Subtract the two like fractions:
24/252 - 224/252 = 24 - 224/252 = -200/252 - After reducing the fraction, the answer is -50/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/84-8/9 8/84-16/9 8/84-8/18 24/84-8/9 8/84-24/9 8/84-8/27 40/84-8/9 8/84-40/9 8/84-8/45 56/84-8/9 8/84-56/9 8/84-8/63