Subtract 40/8 from 4/9
1st number: 4/9, 2nd number: 5 0/8
4/9 - 40/8 is -41/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
4/9 = 4 × 8/9 × 8 = 32/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
40/8 = 40 × 9/8 × 9 = 360/72 - Subtract the two like fractions:
32/72 - 360/72 = 32 - 360/72 = -328/72 - After reducing the fraction, the answer is -41/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/9-40/8 4/9-80/8 4/18-40/8 4/9-40/16 12/9-40/8 4/27-40/8 4/9-40/24 20/9-40/8 4/45-40/8 28/9-40/8 4/63-40/8 4/9-40/56