Subtract 40/9 from 80/5
1st number: 16 0/5, 2nd number: 4 4/9
80/5 - 40/9 is 104/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
80/5 = 80 × 9/5 × 9 = 720/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
40/9 = 40 × 5/9 × 5 = 200/45 - Subtract the two like fractions:
720/45 - 200/45 = 720 - 200/45 = 520/45 - After reducing the fraction, the answer is 104/9
- In mixed form: 115/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/5-80/9 80/10-40/9 80/5-40/18 80/15-40/9 80/5-40/27 80/25-40/9 80/5-40/45 80/35-40/9 80/5-40/63