Subtract 98/18 from 98/30
1st number: 3 8/30, 2nd number: 5 8/18
98/30 - 98/18 is -98/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
98/30 = 98 × 3/30 × 3 = 294/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
98/18 = 98 × 5/18 × 5 = 490/90 - Subtract the two like fractions:
294/90 - 490/90 = 294 - 490/90 = -196/90 - After reducing the fraction, the answer is -98/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/60-98/18 98/30-98/36 98/90-98/18 98/30-98/54 98/30-98/90