Subtract 8/90 from 8/10
8/10 - 8/90 is 32/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
8/10 = 8 × 9/10 × 9 = 72/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
8/90 = 8 × 1/90 × 1 = 8/90 - Subtract the two like fractions:
72/90 - 8/90 = 72 - 8/90 = 64/90 - After reducing the fraction, the answer is 32/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10-8/90 8/10-16/90 8/20-8/90 24/10-8/90 8/10-24/90 8/30-8/90 40/10-8/90 8/10-40/90 8/50-8/90 56/10-8/90 8/10-56/90 8/70-8/90