Answer :

To convert the mixed number [tex]\(3 \frac{6}{7}\)[/tex] into an improper fraction, follow these steps:

1. Identify the whole number and the fractional part of the mixed number.

- Whole number: [tex]\(3\)[/tex]
- Fractional part: [tex]\(\frac{6}{7}\)[/tex]

2. Multiply the whole number by the denominator of the fractional part. This converts the whole number into a fraction with the same denominator.

[tex]\[ 3 \times 7 = 21 \][/tex]

3. Add the numerator of the fractional part to the result from step 2. This gives the numerator of the improper fraction.

[tex]\[ 21 + 6 = 27 \][/tex]

4. The denominator of the improper fraction remains the same as the denominator of the fractional part, which is [tex]\(7\)[/tex].

As a result, the mixed number [tex]\(3 \frac{6}{7}\)[/tex] is converted into the improper fraction:

[tex]\[ \frac{27}{7} \][/tex]

Therefore, [tex]\(3 \frac{6}{7}\)[/tex] expressed as an improper fraction is [tex]\(\frac{27}{7}\)[/tex].