Subtract 40/50 from 4/9
4/9 - 40/50 is -16/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 9 × 50 = 450,
4/9 = 4 × 50/9 × 50 = 200/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
40/50 = 40 × 9/50 × 9 = 360/450 - Subtract the two like fractions:
200/450 - 360/450 = 200 - 360/450 = -160/450 - After reducing the fraction, the answer is -16/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/9-40/50 4/9-80/50 4/18-40/50 12/9-40/50 4/27-40/50 20/9-40/50 4/45-40/50 28/9-40/50 4/63-40/50