Q. Write the repeating decimal as a fraction..626626626
Rephrase the Problem: Let's first rephrase the "How can the repeating decimal 0.626626626… be expressed as a fraction?"
Identify Repeating Pattern: Identify the repeating pattern in the decimal. The digits “626” repeat indefinitely.
Assign Variable x: Let x equal the repeating decimal: x=0.626626626…
Isolate Repeating Pattern: To isolate the repeating pattern, multiply x by 1000, because there are three digits in the repeating pattern: 1000x=626.626626626…
Subtract Original x: Now subtract the original x from 1000x to get rid of the decimal part: 1000x−x=626.626626626…−0.626626626…
Perform Subtraction: Perform the subtraction: 999x=626
Divide by 999: Divide both sides of the equation by 999 to solve for x: x=999626
Check for Simplification: Check if the fraction can be simplified. The numbers 626 and 999 do not have any common factors other than 1, so the fraction is already in its simplest form.
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