Subtract 18/30 from 48/20
1st number: 2 8/20, 2nd number: 18/30
48/20 - 18/30 is 9/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
48/20 = 48 × 3/20 × 3 = 144/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
18/30 = 18 × 2/30 × 2 = 36/60 - Subtract the two like fractions:
144/60 - 36/60 = 144 - 36/60 = 108/60 - After reducing the fraction, the answer is 9/5
- In mixed form: 14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/20-18/30 48/20-36/30 48/40-18/30 48/20-18/60 48/20-54/30 48/60-18/30 48/20-18/90 48/20-90/30