Subtract 20/18 from 98/30
1st number: 3 8/30, 2nd number: 1 2/18
98/30 - 20/18 is 97/45.
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,
20/18 = 20 × 5/18 × 5 = 100/90 - Subtract the two like fractions:
294/90 - 100/90 = 294 - 100/90 = 194/90 - After reducing the fraction, the answer is 97/45
- In mixed form: 27/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/30-40/18 98/60-20/18 98/30-20/36 98/30-60/18 98/90-20/18 98/30-20/54 98/30-20/90