Q. Which fraction, when converted, is a repeating decimal?(A) 83(B) 2511(C) 52(D) 75
Fraction Analysis: To determine which fraction will result in a repeating decimal, we need to look at the denominator of each fraction. A fraction will have a terminating decimal if the denominator is a product of only 2's, 5's, or both, after simplification. If the denominator has prime factors other than 2 or 5, the decimal will be repeating.
rac{3}{8}: Let's examine the first fraction rac{3}{8}. The denominator is 8, which is 23. Since the denominator has only the prime factor 2, the decimal equivalent of this fraction will be terminating.
11/25: Now, let's look at the second fraction 2511. The denominator is 25, which is 52. Since the denominator has only the prime factor 5, the decimal equivalent of this fraction will also be terminating.
rac{2}{5}: Next, we consider the third fraction rac{2}{5}. The denominator is 5, which is a prime number itself. Since the denominator has only the prime factor 5, the decimal equivalent of this fraction will be terminating as well.
rac{5}{7}: Finally, let's examine the fourth fraction rac{5}{7}. The denominator is 7, which is a prime number and not a factor of 2 or 5. Therefore, the decimal equivalent of this fraction will be repeating.
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