Subtract 70/9 from 28/98
1st number: 28/98, 2nd number: 7 7/9
28/98 - 70/9 is -472/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 9 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 9 × 98 = 882,
70/9 = 70 × 98/9 × 98 = 6860/882 - Subtract the two like fractions:
252/882 - 6860/882 = 252 - 6860/882 = -6608/882 - After reducing the fraction, the answer is -472/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/98-70/9 28/98-70/18 84/98-70/9 28/98-70/27 28/98-70/45 28/98-70/63