Subtract 84/18 from 28/98
1st number: 28/98, 2nd number: 4 12/18
28/98 - 84/18 is -92/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 18 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
28/98 = 28 × 9/98 × 9 = 252/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
84/18 = 84 × 49/18 × 49 = 4116/882 - Subtract the two like fractions:
252/882 - 4116/882 = 252 - 4116/882 = -3864/882 - After reducing the fraction, the answer is -92/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/98-84/18 28/98-84/36 84/98-84/18 28/98-84/54 28/98-84/90