Subtract 45/54 from 2/90
2/90 - 45/54 is -73/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
2/90 = 2 × 3/90 × 3 = 6/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
45/54 = 45 × 5/54 × 5 = 225/270 - Subtract the two like fractions:
6/270 - 225/270 = 6 - 225/270 = -219/270 - After reducing the fraction, the answer is -73/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/90-45/54 2/90-90/54 6/90-45/54 10/90-45/54 14/90-45/54