Select the improper fraction that is not equivalent to the whole number 3.

For this case, they ask us to determine which of the improper fractions (Numerator is greater than or equal to the denominator) given is not equivalent to "3".

Option A:

Three times the number "7" gives "21".

Option B:

Note that if we divide the numerator and denominator by "3" we get the fraction \ frac {7} {3} other than the integer "3".

Option C:

Option D:

Three times the number "9" gives "27"

Thus, the fraction that is not equivalent to "3" is:

Option B

72 is the answer to this problem