Question

Efectuați! Problemele

Answer 1

Răspuns:

Explicație pas cu pas:

d) 4/9 + 1/3 = 4/9 + 3/9 = 7/9

f) (75/100 + 51/90 + 125/100)·100/33 =

= (3/4 + 17/30 + 5/4)·100/33 =

= (77/30)·(100/33) =

= 70/9

Answer 2

Răspuns

:$\frac{4}{9}$+$\frac{4}{3}$*$\frac{2}{8}$=$\frac{4}{9}$+$\frac{12}{9}$*$\frac{2}{8}$=$\frac{16}{9}$*$\frac{2}{8}$=$\frac{16*2}{9*8}$=$\frac{32}{72}$=$\frac{16}{36}$=$\frac{4}{9}$

(0,75+0,5(6)+1,25)*3,(03)=(3,75+1,25)*3,(03)=5*3,(03)=45

Succes!!!