11/3 divided by what equals 11 it has to be a fraction

1/3

Step-by-step explanation:

We can solve using algebra: let x be the unknown number.

so 11/3 : x = 11.

Solving:

11/3 = 11x.

x = 11/3 : 11 = 1/3

You can also check the answer by going:

11/3 : 1/3 = 11/3 x 3/1 = 33/3 = 11 (using fraction rules for multiplying and dividing ie. to divide by a fraction we multiple by it's reciprocal, and to multiply by a fraction, we multiple the numerators and the denominators).