Subtract 28/18 from 45/49
1st number: 45/49, 2nd number: 1 10/18
45/49 - 28/18 is -281/441.
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,
45/49 = 45 × 18/49 × 18 = 810/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
28/18 = 28 × 49/18 × 49 = 1372/882 - Subtract the two like fractions:
810/882 - 1372/882 = 810 - 1372/882 = -562/882 - After reducing the fraction, the answer is -281/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49-28/18 45/49-56/18 45/98-28/18 45/49-28/36 45/49-84/18 45/49-28/54 45/49-28/90