Subtract 70/12 from 90/6
1st number: 15 0/6, 2nd number: 5 10/12
90/6 - 70/12 is 55/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
90/6 = 90 × 2/6 × 2 = 180/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
70/12 = 70 × 1/12 × 1 = 70/12 - Subtract the two like fractions:
180/12 - 70/12 = 180 - 70/12 = 110/12 - After reducing the fraction, the answer is 55/6
- In mixed form: 91/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12-70/12 90/6-70/24 90/18-70/12 90/6-70/36 90/30-70/12 90/6-70/60 90/42-70/12 90/6-70/84