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QuestionMathematics

Express $0.02 \overline{2}$ as a fraction.
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Answer

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Step 1:
: Understand the problem

We are given a repeating decimal, $0.02 \overline{2}$, and we need to express it as a fraction.

Step 2:
: Find the pattern in the repeating decimal

The given repeating decimal $0.02 \overline{2}$ has the repeating digit '2' after the decimal point.

Step 3:
: Calculate the difference between the decimal and its repeating part

100x = 2. \overline{2}
Then,

Step 4:
: Subtract the two equations to eliminate the repeating part

99x = 2. \overline{2} - 0.02 \overline{2}

Step 5:
: Calculate the difference on the right side of the equation

2. \overline{2} - 0.02 \overline{2} = 2.222 - 0.02222 = 2.2000

Step 6:
: Divide both sides by 99

\frac{2.2000}{99} = \frac{2200}{9900}

Step 7:
: Simplify the fraction

\frac{2200}{9900} = \frac{11}{49.5}

Final Answer

0.02 \overline{2} = \boxed{\frac{11}{49.5}}