Question

what should be subtracted from - 2/3 to get 3/4

Answer 1

$\frac{ - 2}{3} - x = \frac{3}{4} \\ - x = \frac{3}{4} - \frac{ - 2}{3} \\ - x = \frac{ 9 - ( - 8) }{12} \\ - x = \frac{9 + 8} {12} \\ - x = \frac{17}{12} \\ x = - \frac{17}{12}$

Answer 2

x - 2/3 = 3/4
x = 3/4 + 2/3
x. = 3/4 multiplied by 3 and 2/3 multiplied by 4 (both numerator and the denominator)
x = 9+8/12 = 17/12
x = 1 5/12