Subtract 8/28 from 5/9
5/9 - 8/28 is 17/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
5/9 = 5 × 28/9 × 28 = 140/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
8/28 = 8 × 9/28 × 9 = 72/252 - Subtract the two like fractions:
140/252 - 72/252 = 140 - 72/252 = 68/252 - After reducing the fraction, the answer is 17/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/9-8/28 5/9-16/28 5/18-8/28 5/9-8/56 15/9-8/28 5/9-24/28 5/27-8/28 5/9-8/84 25/9-8/28 5/9-40/28 5/45-8/28 35/9-8/28 5/9-56/28 5/63-8/28