Subtract 28/30 from 98/18
1st number: 5 8/18, 2nd number: 28/30
98/18 - 28/30 is 203/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
98/18 = 98 × 5/18 × 5 = 490/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
28/30 = 28 × 3/30 × 3 = 84/90 - Subtract the two like fractions:
490/90 - 84/90 = 490 - 84/90 = 406/90 - After reducing the fraction, the answer is 203/45
- In mixed form: 423/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18-56/30 98/36-28/30 98/18-28/60 98/18-84/30 98/54-28/30 98/18-28/90 98/90-28/30