Respuesta :
The answer would be (C).
To be fully simplified, the numerator and denominator must have a GCF of 1.
Answer (C) says 3/57. However, using the divisibility rule of 3 (add the digits together, and if the sum is a multiple of 3, then the number is as well), we see that 57 is divisible by 3, meaning this fraction is not simplified. The simplified version would be 1/19.
When a fraction is in reduced form, one of the numbers will be a multiple of the other.
In [tex] \frac{11}{17} [/tex] one of the numbers is NOT a multiple of the other.
In [tex] \frac{5}{16} [/tex] one of the numbers is NOT a multiple of the other.
In [tex] \frac{3}{57} [/tex] one of the numbers IS a multiple of the other.
[tex] \frac{3 \div 3}{57 \div 3} = \frac{1}{19} [/tex]
In [tex] \frac{21}{34} [/tex] one of the numbers is NOT a multiple of the other.
Your answer is C