Subtract 80/5 from 4/9
1st number: 4/9, 2nd number: 16 0/5
4/9 - 80/5 is -140/9.
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,
4/9 = 4 × 5/9 × 5 = 20/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
80/5 = 80 × 9/5 × 9 = 720/45 - Subtract the two like fractions:
20/45 - 720/45 = 20 - 720/45 = -700/45 - After reducing the fraction, the answer is -140/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/9-80/5 4/18-80/5 4/9-80/10 12/9-80/5 4/27-80/5 4/9-80/15 20/9-80/5 4/45-80/5 4/9-80/25 28/9-80/5 4/63-80/5 4/9-80/35