Subtract 28/30 from 98/12
1st number: 8 2/12, 2nd number: 28/30
98/12 - 28/30 is 217/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
98/12 = 98 × 5/12 × 5 = 490/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
28/30 = 28 × 2/30 × 2 = 56/60 - Subtract the two like fractions:
490/60 - 56/60 = 490 - 56/60 = 434/60 - After reducing the fraction, the answer is 217/30
- In mixed form: 77/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12-56/30 98/24-28/30 98/12-28/60 98/12-84/30 98/36-28/30 98/12-28/90 98/60-28/30 98/84-28/30