Subtract 8/40 from 12/6
1st number: 2 0/6, 2nd number: 8/40
12/6 - 8/40 is 9/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
12/6 = 12 × 20/6 × 20 = 240/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
8/40 = 8 × 3/40 × 3 = 24/120 - Subtract the two like fractions:
240/120 - 24/120 = 240 - 24/120 = 216/120 - After reducing the fraction, the answer is 9/5
- In mixed form: 14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/6-8/40 12/6-16/40 12/6-8/80 36/6-8/40 12/6-24/40 12/18-8/40 60/6-8/40 12/30-8/40 84/6-8/40 12/6-56/40 12/42-8/40