Subtract 4/9 from 4/8
4/8 - 4/9 is 1/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
4/8 = 4 × 9/8 × 9 = 36/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
4/9 = 4 × 8/9 × 8 = 32/72 - Subtract the two like fractions:
36/72 - 32/72 = 36 - 32/72 = 4/72 - After reducing the fraction, the answer is 1/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/8-8/9 4/16-4/9 4/8-4/18 12/8-4/9 4/8-12/9 4/24-4/9 4/8-4/27 20/8-4/9 4/8-20/9 4/40-4/9 4/8-4/45 28/8-4/9 4/8-28/9 4/56-4/9 4/8-4/63