Answer:
3:11
Step-by-step explanation:
the other ones have 7 in them
³⁄₁₁ does not belong
⁷⁄₄₉ , 1/7, ²⁄₁₄, ³⁄₁₁
⁷⁄₄₉ = 1/7
1/7 = 1/7
²⁄₁₄ = 1/7
³⁄₁₁ doesn't equal to 1/7
See attached
Refer to picture
12:13 is the ratio of boys:girls.
