Subtract 45/49 from 8/9
8/9 - 45/49 is -13/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 49 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 9 × 49 = 441,
8/9 = 8 × 49/9 × 49 = 392/441 - Likewise, for the 2nd fraction, since 49 × 9 = 441,
45/49 = 45 × 9/49 × 9 = 405/441 - Subtract the two like fractions:
392/441 - 405/441 = 392 - 405/441 = -13/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/9-45/49 8/9-90/49 8/18-45/49 8/9-45/98 24/9-45/49 8/27-45/49 40/9-45/49 8/45-45/49 56/9-45/49 8/63-45/49