Subtract 42/5 from 40/6
1st number: 6 4/6, 2nd number: 8 2/5
40/6 - 42/5 is -26/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
40/6 = 40 × 5/6 × 5 = 200/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
42/5 = 42 × 6/5 × 6 = 252/30 - Subtract the two like fractions:
200/30 - 252/30 = 200 - 252/30 = -52/30 - After reducing the fraction, the answer is -26/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6-42/5 40/6-84/5 40/12-42/5 40/6-42/10 40/18-42/5 40/6-42/15 40/30-42/5 40/6-42/25 40/42-42/5 40/6-42/35