Subtract 18/3 from 6/20
1st number: 6/20, 2nd number: 6 0/3
6/20 - 18/3 is -57/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
6/20 = 6 × 3/20 × 3 = 18/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
18/3 = 18 × 20/3 × 20 = 360/60 - Subtract the two like fractions:
18/60 - 360/60 = 18 - 360/60 = -342/60 - After reducing the fraction, the answer is -57/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20-18/3 6/20-36/3 6/40-18/3 6/20-18/6 18/20-18/3 6/20-54/3 6/60-18/3 6/20-18/9 30/20-18/3 6/20-90/3 6/20-18/15 42/20-18/3 6/20-18/21