Subtract 30/3 from 18/30
1st number: 18/30, 2nd number: 10 0/3
18/30 - 30/3 is -47/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 3 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
18/30 = 18 × 1/30 × 1 = 18/30 - Likewise, for the 2nd fraction, since 3 × 10 = 30,
30/3 = 30 × 10/3 × 10 = 300/30 - Subtract the two like fractions:
18/30 - 300/30 = 18 - 300/30 = -282/30 - After reducing the fraction, the answer is -47/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30-30/3 18/30-60/3 18/60-30/3 18/30-30/6 54/30-30/3 18/30-90/3 18/90-30/3 18/30-30/9 90/30-30/3 18/30-30/15 18/30-30/21