Subtract 18/3 from 3/20
1st number: 3/20, 2nd number: 6 0/3
3/20 - 18/3 is -117/20.
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,
3/20 = 3 × 3/20 × 3 = 9/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
18/3 = 18 × 20/3 × 20 = 360/60 - Subtract the two like fractions:
9/60 - 360/60 = 9 - 360/60 = -351/60 - After reducing the fraction, the answer is -117/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20-18/3 3/20-36/3 3/40-18/3 3/20-18/6 9/20-18/3 3/20-54/3 3/60-18/3 3/20-18/9 15/20-18/3 3/20-90/3 3/20-18/15 21/20-18/3 3/20-18/21