Subtract 3/56 from 90/12
1st number: 7 6/12, 2nd number: 3/56
90/12 - 3/56 is 417/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
90/12 = 90 × 14/12 × 14 = 1260/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
3/56 = 3 × 3/56 × 3 = 9/168 - Subtract the two like fractions:
1260/168 - 9/168 = 1260 - 9/168 = 1251/168 - After reducing the fraction, the answer is 417/56
- In mixed form: 725/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12-6/56 90/24-3/56 90/12-9/56 90/36-3/56 90/12-15/56 90/60-3/56 90/12-21/56 90/84-3/56