Answer :

To convert \( 0.8\overline{3} \) to a fraction, follow these detailed steps:

1. Identify the repeating part and write the number as a sum of its non-repeating part and the repeating part:
[tex]\[ 0.8\overline{3} = 0.83333... \][/tex]

2. Let \( x \) represent the repeating decimal:
[tex]\[ x = 0.83333... \][/tex]

3. Separate the non-repeating part (0.8) from the repeating part (\(\overline{3}\)) by expressing \( x \) appropriately:
[tex]\[ x = 0.8 + 0.03333... \][/tex]

4. Let \( y \) represent the repeating part alone:
[tex]\[ y = 0.03333... \][/tex]

5. Express \( y \) as a fraction:
[tex]\[ y = 0.03333... = \frac{1}{30} \quad \text{(since [tex]$3$[/tex] repeats every digit)}
\][/tex]

6. Combine the non-repeating part and the fraction obtained from the repeating part:
[tex]\[ x = 0.8 + \frac{1}{30} \][/tex]

7. Express \(0.8\) as a fraction:
[tex]\[ 0.8 = \frac{8}{10} = \frac{4}{5} \][/tex]

8. Add the two fractions together, finding a common denominator if necessary:
[tex]\[ x = \frac{4}{5} + \frac{1}{30} \][/tex]

First, find the common denominator. The least common multiple of 5 and 30 is 30.

[tex]\[ \frac{4}{5} = \frac{4 \times 6}{5 \times 6} = \frac{24}{30} \][/tex]

Now add:

[tex]\[ \frac{24}{30} + \frac{1}{30} = \frac{24 + 1}{30} = \frac{25}{30} \][/tex]

9. Simplify the fraction:
[tex]\[ \frac{25}{30} = \frac{25 \div 5}{30 \div 5} = \frac{5}{6} \][/tex]

Therefore, \( 0.8\overline{3} \) as a fraction is:

[tex]\[ \boxed{\frac{5}{6}} \][/tex]

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