Subtract 98/9 from 28/30
1st number: 28/30, 2nd number: 10 8/9
28/30 - 98/9 is -448/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
28/30 = 28 × 3/30 × 3 = 84/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
98/9 = 98 × 10/9 × 10 = 980/90 - Subtract the two like fractions:
84/90 - 980/90 = 84 - 980/90 = -896/90 - After reducing the fraction, the answer is -448/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30-98/9 28/60-98/9 28/30-98/18 84/30-98/9 28/90-98/9 28/30-98/27 28/30-98/45 28/30-98/63