Question

Efectuați:
[(0,25+2/3)•0,75-3/20•5/4]:3
pls repede
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Answer 1

Răspuns:

1/6

Explicație pas cu pas:

[(0,25+2/3)•0,75-3/20•5/4]:3 =

= [(³⁾1/4 + ⁴⁾2/3)•3/4 - 3•5/(20•4)] :3 =

=  [(3/12+8/12)•3/4 - 15/80]:3 =

= (11/12 •3/4 - 3/16):3 =

= (33/48 - 3/16):3 =

= (11/16 - 3/16):3 =

= [(11-3)/16]:3 =

= 8/16 •1/3 = 1/2 • 1/3 = 1/6