Question

1/3×(0,3с-0,6) -1/4×(0,4с-0,8) СРОЧНО!!!!!

Answer 1

$\frac{1}{3} (0,3c-0,6)-\frac{1}{4} (0,4c-0,8)=\frac{3}{3*10} c-\frac{6}{3*10} -\frac{4}{4*10} c+\frac{8}{4*10} =0,1c-0,2-0,1c+0,2=0$