Subtract 8/9 from 5/30
5/30 - 8/9 is -13/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
5/30 = 5 × 3/30 × 3 = 15/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
8/9 = 8 × 10/9 × 10 = 80/90 - Subtract the two like fractions:
15/90 - 80/90 = 15 - 80/90 = -65/90 - After reducing the fraction, the answer is -13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30-8/9 5/30-16/9 5/60-8/9 5/30-8/18 15/30-8/9 5/30-24/9 5/90-8/9 5/30-8/27 25/30-8/9 5/30-40/9 5/30-8/45 35/30-8/9 5/30-56/9 5/30-8/63