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Given a fraction. Convert it into a decimal.

If the fractional part is repeating, enclose the repeating part in parentheses.

**Example 1:**

**Input: **numerator = 1, denominator = 3
**Output: "**0.(3)"
**Explanation: **1/3 = 0.3333... So here 3 is
recurring.

**Example 2:**

**Input: **numerator = 5, denominator = 2
**Output: **"2.5"
**Explanation: **5/2 = 2.5

**Your Task:**

You don't need to read or print anyhting. Your task is to complete the function **fractionToDecimal() **which takes numerator and denominator as input parameter and returns its decimal form in string format.

**Expected Time Compelxity: **O(k) where k is constant.

**Expected Space Complexity: **O(k)

**Constraints:**

1 ≤ numerator, denominator ≤ 2000

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A Simple Fraction

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