Subtract 80/90 from 6/50
6/50 - 80/90 is -173/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
6/50 = 6 × 9/50 × 9 = 54/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
80/90 = 80 × 5/90 × 5 = 400/450 - Subtract the two like fractions:
54/450 - 400/450 = 54 - 400/450 = -346/450 - After reducing the fraction, the answer is -173/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/50-80/90 18/50-80/90 30/50-80/90 42/50-80/90