Question

1/2×1 1/4а-3/8 при а=-4

Answer 1

$frac{1}{2} * frac{11}{4} а- frac{3}{8}$   
х=-4
$frac{1}{2} * frac{11}{4}*(-4) - frac{3}{8} = -frac{47}{8}$

Answer 2

((1/2)*(11/4а))-3/8; а=-4; ⇒((1/2)*(11/4*(-4)))-3/8=((1/2)*(-(11/16)))-3/8=(-(11/32))-3/8=(-(11/32))-((3/8)*(4/4))=(-(11/32))-(12/32)=(-(23/32))