Subtract 8/90 from 12/6
1st number: 2 0/6, 2nd number: 8/90
12/6 - 8/90 is 86/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
12/6 = 12 × 15/6 × 15 = 180/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
8/90 = 8 × 1/90 × 1 = 8/90 - Subtract the two like fractions:
180/90 - 8/90 = 180 - 8/90 = 172/90 - After reducing the fraction, the answer is 86/45
- In mixed form: 141/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/6-8/90 12/6-16/90 36/6-8/90 12/6-24/90 12/18-8/90 60/6-8/90 12/6-40/90 12/30-8/90 84/6-8/90 12/6-56/90 12/42-8/90