8 9/15 - 1/2 =

A.8 8/13
B.8 4/15
C.8 8/15
D.8 8/1
E. None of these
A?

5/6 / 15=
A. 1/2
B. 10 5/7
C. 18
D. 1/18
B?

Both are wrong.

Please do not continue wasting your and our time by posting wild guesses.

On the other hand, if these are not wild guesses, show us how you got your answer, and maybe we can provide some pointers. Of course, the first step would be to study your text and try to do your problems following their examples.

To solve the first equation, 8 9/15 - 1/2, we need to find a common denominator for the fractions. The common denominator is 30.

For the whole number, 8, we can rewrite it as 8/1 to have a common denominator.

Now, we can rewrite the equation as (8*30 + 9) / 15 - (1*15) / 30.

Simplifying further, we get (240 + 9) / 15 - 15 / 30 = 249 / 15 - 15 / 30.

To subtract the fractions, we need to find a common denominator, which is 30.

Now, we can rewrite the equation as (249 - 15) / 15 = 234 / 15.

Simplifying further, we get 15 9/15.

Since 9/15 can be simplified to 3/5, the answer is 15 3/5.

Therefore, none of the given options are correct. The correct answer is not listed.

To solve the second equation, 5/6 divided by 15, we can rewrite it as (5/6) * (1/15).

To multiply fractions, we multiply the numerators and denominators.

Simplifying further, we get 5/90.

Since 5 and 90 have a common factor of 5, we can simplify the fraction to 1/18.

Therefore, the correct answer is D. 1/18.

Note: The option given as B, 10 5/7, is not correct based on the simplification steps above.