Subtract 48/18 from 25/20
1st number: 1 5/20, 2nd number: 2 12/18
25/20 - 48/18 is -17/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 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 18 × 10 = 180,
48/18 = 48 × 10/18 × 10 = 480/180 - Subtract the two like fractions:
225/180 - 480/180 = 225 - 480/180 = -255/180 - After reducing the fraction, the answer is -17/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/20-48/18 25/20-96/18 25/40-48/18 25/20-48/36 75/20-48/18 25/60-48/18 25/20-48/54 25/20-48/90