Subtract 15/9 from 30/3
1st number: 10 0/3, 2nd number: 1 6/9
30/3 - 15/9 is 25/3.
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,
30/3 = 30 × 3/3 × 3 = 90/9 - Likewise, for the 2nd fraction, since 9 × 1 = 9,
15/9 = 15 × 1/9 × 1 = 15/9 - Subtract the two like fractions:
90/9 - 15/9 = 90 - 15/9 = 75/9 - After reducing the fraction, the answer is 25/3
- In mixed form: 81/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/3-15/9 30/3-30/9 30/6-15/9 30/3-15/18 90/3-15/9 30/3-45/9 30/9-15/9 30/3-15/27 30/3-75/9 30/15-15/9 30/3-15/45 30/21-15/9 30/3-15/63