Subtract 4/72 from 98/18
1st number: 5 8/18, 2nd number: 4/72
98/18 - 4/72 is 97/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
98/18 = 98 × 4/18 × 4 = 392/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
4/72 = 4 × 1/72 × 1 = 4/72 - Subtract the two like fractions:
392/72 - 4/72 = 392 - 4/72 = 388/72 - After reducing the fraction, the answer is 97/18
- In mixed form: 57/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/18-8/72 98/36-4/72 98/18-12/72 98/54-4/72 98/18-20/72 98/90-4/72 98/18-28/72