Subtract 27/45 from 9/50
9/50 - 27/45 is -21/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 45 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
9/50 = 9 × 9/50 × 9 = 81/450 - Likewise, for the 2nd fraction, since 45 × 10 = 450,
27/45 = 27 × 10/45 × 10 = 270/450 - Subtract the two like fractions:
81/450 - 270/450 = 81 - 270/450 = -189/450 - After reducing the fraction, the answer is -21/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/50-27/45 9/50-54/45 9/50-27/90 27/50-27/45 9/50-81/45 45/50-27/45 63/50-27/45