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