Question

a=-1,b=-2/3,c=-3/4 the value of a+b+c is

Answer 1

hope it helps
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Answer 2

$a + b + c \\ - 1 + ( \frac{ -2}{3} ) + ( - \frac{3}{4} )$
Lets take lcm
$- 1 - \frac{2}{3} - \frac{3}{4}$
$\frac{ - 12 - 8 - 9}{12}$
$\frac{ - 20 - 9}{12}$
so
-29/12

I hope it helps!!