Subtract 2/10 from 8/9
8/9 - 2/10 is 31/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
8/9 = 8 × 10/9 × 10 = 80/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
2/10 = 2 × 9/10 × 9 = 18/90 - Subtract the two like fractions:
80/90 - 18/90 = 80 - 18/90 = 62/90 - After reducing the fraction, the answer is 31/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/9-2/10 8/9-4/10 8/18-2/10 8/9-2/20 24/9-2/10 8/9-6/10 8/27-2/10 8/9-2/30 40/9-2/10 8/45-2/10 8/9-2/50 56/9-2/10 8/9-14/10 8/63-2/10 8/9-2/70