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What is obtained when (0.00003125) is converted into a simplified fraction?

Answer and explanation

Correct answer: ( \frac{1}{32000} )

The direct answer is option C, 1/32000. The decimal has eight digits after the decimal point, so 0.00003125 = 3125/100000000. Now simplify by dividing numerator and denominator by 3125: 3125/3125 = 1, and 100000000/3125 = 32000. Hence the fraction in lowest terms is 1/32000. Option A, 1/3200, is ten times too large. Option B, 1/3125, is also larger and does not equal the decimal. Option C is correct because it is the exact simplified fraction. Option D, 3125/1000000, equals 1/320, not the given small decimal; it also uses the wrong denominator for the number of decimal places. Memory cue: eight decimal places mean denominator 10^8 before cancellation.

Related tags

Number-SystemsDecimal-RepresentationDecimal-To-Fraction

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