Subtract 8/12 from 6/40
6/40 - 8/12 is -31/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
6/40 = 6 × 3/40 × 3 = 18/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
8/12 = 8 × 10/12 × 10 = 80/120 - Subtract the two like fractions:
18/120 - 80/120 = 18 - 80/120 = -62/120 - After reducing the fraction, the answer is -31/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/40-8/12 6/40-16/12 6/80-8/12 6/40-8/24 18/40-8/12 6/40-24/12 6/40-8/36 30/40-8/12 6/40-40/12 6/40-8/60 42/40-8/12 6/40-56/12 6/40-8/84