Subtract 8/9 from 9/28
9/28 - 8/9 is -143/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
9/28 = 9 × 9/28 × 9 = 81/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
8/9 = 8 × 28/9 × 28 = 224/252 - Subtract the two like fractions:
81/252 - 224/252 = 81 - 224/252 = -143/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/28-8/9 9/28-16/9 9/56-8/9 9/28-8/18 27/28-8/9 9/28-24/9 9/84-8/9 9/28-8/27 45/28-8/9 9/28-40/9 9/28-8/45 63/28-8/9 9/28-56/9 9/28-8/63