Question

Efectuati 12•{1+1/10:[8/9+1/4•(1/3+1/3:3)]-1/2}

REPEDE VA ROG!!!!!!!!!!!

Answer 1

Te salut, Yanis!

Răspuns:

Explicație pas cu pas:

1/10 → fracția 1 supra 10, unde / = linie de fracția

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12•{1+1/10:[8/9+1/4•(1/3+1/3:3)]-1/2} =

=  12•{1+1/10:[8/9+1/4•(1/3+1/3 × 1/3)]-1/2} =

=  12•{1+1/10:[8/9+1/4•(3/9+1/9)]-1/2} =

= 12× [1 + 1/10: (8/9 + 1/4 × 4/9) - 1/2] =

= 12× [1 + 1/10: (8/9 + 1/9) - 1/2]

= 12 × [1 + 1/10 : (9/9) - 1/2] =

= 12 ×  (1 + 1/10 × 1 - 1/2) =

= 12 × ( 10/10 + 1/10 - 5/10 ) =

= 12 × (6/10) =

= 36/5 =

= 7 întregi și 1/5

= 7,2