Subtract 21/54 from 98/12
1st number: 8 2/12, 2nd number: 21/54
98/12 - 21/54 is 70/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
98/12 = 98 × 9/12 × 9 = 882/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108 - Subtract the two like fractions:
882/108 - 42/108 = 882 - 42/108 = 840/108 - After reducing the fraction, the answer is 70/9
- In mixed form: 77/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12-42/54 98/24-21/54 98/12-63/54 98/36-21/54 98/60-21/54 98/84-21/54