Answer :

To solve the given expression [tex]\(\frac{39-56}{21}\)[/tex], follow these steps:

1. Calculate the numerator:
[tex]\(39 - 56\)[/tex].

2. Calculate the result of the subtraction:
[tex]\(39 - 56 = -17\)[/tex].

So, the numerator is [tex]\(-17\)[/tex].

3. Identify the denominator:
The denominator is already given as 21.

4. Write the fraction with the calculated numerator and given denominator:
[tex]\(\frac{-17}{21}\)[/tex].

5. Perform the division:
[tex]\(\frac{-17}{21} \approx -0.8095238095238095\)[/tex].

So, the simplified, decimal form of [tex]\(\frac{39-56}{21}\)[/tex] is approximately [tex]\(-0.8095238095238095\)[/tex].

Thus, the complete solution is:
- The numerator: [tex]\(-17\)[/tex]
- The denominator: [tex]\(21\)[/tex]
- The result: [tex]\(-0.8095238095238095\)[/tex]