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Rewrite as a simplified fraction.

[tex]\[ 3.\overline{2} = ? \][/tex]

Sagot :

To convert the repeating decimal [tex]\(3.\overline{2}\)[/tex] into a simplified fraction, follow these detailed steps:

1. Let [tex]\( x \)[/tex] be the repeating decimal:
[tex]\[ x = 3.2222\ldots \][/tex]

2. Multiply [tex]\( x \)[/tex] by 10 to shift the decimal point to the right, matching the repeating part:
[tex]\[ 10x = 32.2222\ldots \][/tex]

3. Subtract the original [tex]\( x \)[/tex] from this equation to eliminate the repeating part:
[tex]\[ 10x - x = 32.2222\ldots - 3.2222\ldots \][/tex]
[tex]\[ 9x = 29 \][/tex]

4. Solve for [tex]\( x \)[/tex]:
[tex]\[ x = \frac{29}{9} \][/tex]

5. Simplify the fraction if possible. In this case, [tex]\(\frac{29}{9}\)[/tex] is already in its simplest form since 29 is a prime number and does not have any common factors with 9.

Therefore, the repeating decimal [tex]\(3.\overline{2}\)[/tex] as a simplified fraction is:
[tex]\[ \boxed{\frac{29}{9}} \][/tex]