Răspuns:
4/5 * [2/2*(1/2-1/4)]
Amplificam 1/2 cu 2:
2/4-1/4=1/4 deci avem:
4/5*2/2*1/2=
8/10*1/2=8/20
B)4/3-2/3*(5/6+1/3)]*3/10=
4/3-2/3*(5/6+ 1/3 pe care il amplificam cu 2=
4/3-2/3*(5/6+2/6)*3/10
(4/3-2/3*7/6)*3/10
(4/3-14/18) *3/10
(4/3 pe care il amplificam cu 6=
(24/18-14/18) * 3/10
10/18*3/10=30/180 daca il simplificam cu 30=
1/6
Sper ca te am ajutat!
