Subtract 18/6 from 15/9
1st number: 1 6/9, 2nd number: 3 0/6
15/9 - 18/6 is -4/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 6 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 9 × 2 = 18,
15/9 = 15 × 2/9 × 2 = 30/18 - Likewise, for the 2nd fraction, since 6 × 3 = 18,
18/6 = 18 × 3/6 × 3 = 54/18 - Subtract the two like fractions:
30/18 - 54/18 = 30 - 54/18 = -24/18 - After reducing the fraction, the answer is -4/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/9-18/6 15/9-36/6 15/18-18/6 15/9-18/12 45/9-18/6 15/9-54/6 15/27-18/6 75/9-18/6 15/9-90/6 15/45-18/6 15/9-18/30 15/63-18/6 15/9-18/42