Subtract 30/9 from 15/3
1st number: 5 0/3, 2nd number: 3 3/9
15/3 - 30/9 is 5/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 9 is 9
Next, find the equivalent fraction of both fractional numbers with denominator 9 - For the 1st fraction, since 3 × 3 = 9,
15/3 = 15 × 3/3 × 3 = 45/9 - Likewise, for the 2nd fraction, since 9 × 1 = 9,
30/9 = 30 × 1/9 × 1 = 30/9 - Subtract the two like fractions:
45/9 - 30/9 = 45 - 30/9 = 15/9 - After reducing the fraction, the answer is 5/3
- In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/3-30/9 15/3-60/9 15/6-30/9 15/3-30/18 45/3-30/9 15/3-90/9 15/9-30/9 15/3-30/27 75/3-30/9 15/3-30/45 15/21-30/9 15/3-30/63