What are the three ratios equivalent to 8:12

2/3 - divide both numerator and denominator by its common factors which in this case is 4 (following this would get you 2/3)

4/6 - divide both numerator and denominator by its common factor which in this case is 2 (following this would get you 4/6)

16/24 - multiply both the numerator and denominator by 2