Subtract 45/5 from 30/9
1st number: 3 3/9, 2nd number: 9 0/5
30/9 - 45/5 is -17/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
30/9 = 30 × 5/9 × 5 = 150/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
45/5 = 45 × 9/5 × 9 = 405/45 - Subtract the two like fractions:
150/45 - 405/45 = 150 - 405/45 = -255/45 - After reducing the fraction, the answer is -17/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9-45/5 30/9-90/5 30/18-45/5 30/9-45/10 90/9-45/5 30/27-45/5 30/9-45/15 30/45-45/5 30/9-45/25 30/63-45/5 30/9-45/35