Subtract 9/6 from 18/20
1st number: 18/20, 2nd number: 1 3/6
18/20 - 9/6 is -3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 6 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Likewise, for the 2nd fraction, since 6 × 10 = 60,
9/6 = 9 × 10/6 × 10 = 90/60 - Subtract the two like fractions:
54/60 - 90/60 = 54 - 90/60 = -36/60 - After reducing the fraction, the answer is -3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/20-9/6 18/20-18/6 18/40-9/6 18/20-9/12 54/20-9/6 18/20-27/6 18/60-9/6 18/20-9/18 90/20-9/6 18/20-45/6 18/20-9/30 18/20-63/6 18/20-9/42