Subtract 30/90 from 98/12
1st number: 8 2/12, 2nd number: 30/90
98/12 - 30/90 is 47/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
98/12 = 98 × 15/12 × 15 = 1470/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
30/90 = 30 × 2/90 × 2 = 60/180 - Subtract the two like fractions:
1470/180 - 60/180 = 1470 - 60/180 = 1410/180 - After reducing the fraction, the answer is 47/6
- In mixed form: 75/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12-60/90 98/24-30/90 98/36-30/90 98/60-30/90 98/84-30/90