Subtract 7/45 from 98/12
1st number: 8 2/12, 2nd number: 7/45
98/12 - 7/45 is 721/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 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 45 × 4 = 180,
7/45 = 7 × 4/45 × 4 = 28/180 - Subtract the two like fractions:
1470/180 - 28/180 = 1470 - 28/180 = 1442/180 - After reducing the fraction, the answer is 721/90
- In mixed form: 81/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/12-14/45 98/24-7/45 98/12-7/90 98/12-21/45 98/36-7/45 98/12-35/45 98/60-7/45 98/12-49/45 98/84-7/45