Question

verify that (a+b)+c = a+(b+c) by taking
a= -2, b= -2/3, c= -3/4

Answer 1

Step-by-step explanation:

(-2-2/3)+-3/4=-2+(-2/3-3/4)

(-8/3)-3/4=-2-17/12

-41/12=-41/12

proved

Answer 2

Step-by-step explanation:

$(- 2 - \frac{2}{3} ) - \frac{3}{4} = - 2 + ( \frac{ - 2}{3} - \frac{3}{4} )$

$\frac{ - 8 }{3} - \frac{3}{4} = - 2 - \frac{17}{12}$

$\frac{ - 41}{12} = \frac{ - 41}{12}$

LHS = RHS