Subtract 9/50 from 8/45
8/45 - 9/50 is -1/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
8/45 = 8 × 10/45 × 10 = 80/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
9/50 = 9 × 9/50 × 9 = 81/450 - Subtract the two like fractions:
80/450 - 81/450 = 80 - 81/450 = -1/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/45-9/50 8/45-18/50 8/90-9/50 24/45-9/50 8/45-27/50 40/45-9/50 8/45-45/50 56/45-9/50 8/45-63/50