Subtract 8/45 from 25/20
1st number: 1 5/20, 2nd number: 8/45
25/20 - 8/45 is 193/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
25/20 = 25 × 9/20 × 9 = 225/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
8/45 = 8 × 4/45 × 4 = 32/180 - Subtract the two like fractions:
225/180 - 32/180 = 225 - 32/180 = 193/180 - In mixed form: 113/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20-8/45 25/20-16/45 25/40-8/45 25/20-8/90 75/20-8/45 25/20-24/45 25/60-8/45 25/20-40/45 25/20-56/45