Subtract 8/18 from 9/49
9/49 - 8/18 is -115/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 18 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 49 × 18 = 882,
9/49 = 9 × 18/49 × 18 = 162/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
8/18 = 8 × 49/18 × 49 = 392/882 - Subtract the two like fractions:
162/882 - 392/882 = 162 - 392/882 = -230/882 - After reducing the fraction, the answer is -115/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/49-8/18 9/49-16/18 9/98-8/18 9/49-8/36 27/49-8/18 9/49-24/18 9/49-8/54 45/49-8/18 9/49-40/18 9/49-8/90 63/49-8/18 9/49-56/18