Subtract 5/18 from 98/15
1st number: 6 8/15, 2nd number: 5/18
98/15 - 5/18 is 563/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
98/15 = 98 × 6/15 × 6 = 588/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
5/18 = 5 × 5/18 × 5 = 25/90 - Subtract the two like fractions:
588/90 - 25/90 = 588 - 25/90 = 563/90 - In mixed form: 623/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/15-10/18 98/30-5/18 98/15-5/36 98/15-15/18 98/45-5/18 98/15-5/54 98/15-25/18 98/75-5/18 98/15-5/90 98/15-35/18