a) [3/4+2/3:(3/4-1/2)]•6/41
Dacă răspundeți in 10 minute va dau coroana plus 12 puncte

[3/4+2/3:(3/4-1/2)]•6/41=

=(3/4 +2/3: 3-2×1 totul supra/4)×6/41=

=(3/4+2/3: 1/4)×6/41=

=(3/4+2/3×4/1)×6/41=

=(3/4+ 2×4 totul supra/3×1)×6/41=

=(3/4+8/3)×6/41=

=3×3+4×8 tot asta supra/12 ×6/41=

=9+32 totul supra/12 ×6/41=

=41/12 ×6/41=

=1×1 totul supra /2×1 =

=1/2

Răspuns:

1/2

Explicație pas cu pas:

3/4 +2/3:1/4=3/4+8/3=41/12

41/12 x6/41 =1/2