Subtract 80/9 from 40/4
1st number: 10 0/4, 2nd number: 8 8/9
40/4 - 80/9 is 10/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
40/4 = 40 × 9/4 × 9 = 360/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
80/9 = 80 × 4/9 × 4 = 320/36 - Subtract the two like fractions:
360/36 - 320/36 = 360 - 320/36 = 40/36 - After reducing the fraction, the answer is 10/9
- In mixed form: 11/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-80/9 40/8-80/9 40/4-80/18 40/12-80/9 40/4-80/27 40/20-80/9 40/4-80/45 40/28-80/9 40/4-80/63