Question

Ex 65 cazul A va rog foarte mult !!!

Answer 1

A) (12$\frac{5}{12}$+1$\frac{2}{3}$-3$\frac{5}{6}$+2$\frac{3}{4}$):(2$\frac{1}{2}$x$\frac{2}{5}$-$\frac{7}{9}$)=
=($\frac{149}{12}$+$\frac{5}{3}$-$\frac{23}{6}$+$\frac{11}{4}$):($\frac{5}{2}$*$\frac{2}{5}$-$\frac{7}{9}$)=
=[(114+20-46+33):12]-$\frac{2}{9}$=12,58-$\frac{2}{9}$=
=$\frac{1258}{100}$-$\frac{2}{9}$=
$\frac{11322}{900}$-$\frac{200}{900}$=$\frac{11122}{100}$