Subtract 8/6 from 12/40
1st number: 12/40, 2nd number: 1 2/6
12/40 - 8/6 is -31/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 6 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
12/40 = 12 × 3/40 × 3 = 36/120 - Likewise, for the 2nd fraction, since 6 × 20 = 120,
8/6 = 8 × 20/6 × 20 = 160/120 - Subtract the two like fractions:
36/120 - 160/120 = 36 - 160/120 = -124/120 - After reducing the fraction, the answer is -31/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40-8/6 12/40-16/6 12/80-8/6 12/40-8/12 36/40-8/6 12/40-24/6 12/40-8/18 60/40-8/6 12/40-40/6 12/40-8/30 84/40-8/6 12/40-56/6 12/40-8/42