👤

calculați: i) [1,5+0,(3):2]ori 0,25

Răspuns :

[1,5+0,(3)÷2]× 0,25=(3/2+1/3×1/2) ×1/4=(3/2+1/6) ×1/4= (9/6+1/6) ×1/4=
= 10/6×1/4=10/24=5/12= 0,41(6)





[1,5+0,(3):2]x0,25
(1,5+0,4:2)x0,25
(1,5+0,2)x0,25
1,7x0,25=0,425