Subtract 20/25 from 2/45
2/45 - 20/25 is -34/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
2/45 = 2 × 5/45 × 5 = 10/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
20/25 = 20 × 9/25 × 9 = 180/225 - Subtract the two like fractions:
10/225 - 180/225 = 10 - 180/225 = -170/225 - After reducing the fraction, the answer is -34/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45-20/25 2/45-40/25 2/90-20/25 2/45-20/50 6/45-20/25 2/45-60/25 2/45-20/75 10/45-20/25 14/45-20/25