First of all, note that 40 is the same as 40/1 since 40 divided by 1 is 40. Therefore, start by setting up the problem like this:
40
1
x
5
6
Step 2: Multiply
Multiply the numerators together (40 x 5 = 200) and multiply the denominators together (1 x 6 = 6) and make it into one fraction like so:
200
6
Step 3: Minimize
The greatest common factor of 200 and 6 is 2. Minimize the fraction by dividing the numerator and the denominator by its greatest common factor to get:
100
3
Step 4: Convert
Convert the improper fraction above to a mixed number to get the answer:
33
1
3
That's it! Now you know how to calculate 40 times 5/6.