Subtract 5/90 from 8/10
8/10 - 5/90 is 67/90.
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,
5/90 = 5 × 1/90 × 1 = 5/90 - Subtract the two like fractions:
72/90 - 5/90 = 72 - 5/90 = 67/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10-5/90 8/10-10/90 8/20-5/90 24/10-5/90 8/10-15/90 8/30-5/90 40/10-5/90 8/10-25/90 8/50-5/90 56/10-5/90 8/10-35/90 8/70-5/90