Subtract 4/30 from 30/9
1st number: 3 3/9, 2nd number: 4/30
30/9 - 4/30 is 16/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
30/9 = 30 × 10/9 × 10 = 300/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
4/30 = 4 × 3/30 × 3 = 12/90 - Subtract the two like fractions:
300/90 - 12/90 = 300 - 12/90 = 288/90 - After reducing the fraction, the answer is 16/5
- In mixed form: 31/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9-4/30 30/9-8/30 30/18-4/30 30/9-4/60 90/9-4/30 30/9-12/30 30/27-4/30 30/9-4/90 30/9-20/30 30/45-4/30 30/9-28/30 30/63-4/30