The correct answer is "The next fraction in the pattern is 342/324" because the denominator and numerator are being multiplied by three everytime. <span />
You know x, so just plug it in for the answers. Like AB = x + 7, so since x is 3, then AB is 3 + 7 = 10
BD is 2x + 3x -1 = 6 + 9 - 1 = 14
CE is 3x - 1+ 2x + 3 = 9-1+6+3= 17
