Subtract 48/5 from 30/20
1st number: 1 10/20, 2nd number: 9 3/5
30/20 - 48/5 is -81/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
30/20 = 30 × 1/20 × 1 = 30/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
48/5 = 48 × 4/5 × 4 = 192/20 - Subtract the two like fractions:
30/20 - 192/20 = 30 - 192/20 = -162/20 - After reducing the fraction, the answer is -81/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/20-48/5 30/20-96/5 30/40-48/5 30/20-48/10 90/20-48/5 30/60-48/5 30/20-48/15 30/20-48/25 30/20-48/35