Subtract 25/50 from 2/45
2/45 - 25/50 is -41/90.
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,
2/45 = 2 × 10/45 × 10 = 20/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
25/50 = 25 × 9/50 × 9 = 225/450 - Subtract the two like fractions:
20/450 - 225/450 = 20 - 225/450 = -205/450 - After reducing the fraction, the answer is -41/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45-25/50 2/90-25/50 6/45-25/50 2/45-75/50 10/45-25/50 14/45-25/50