5. Calculaţi: Va rog frumos
Urgent!!!!!!
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Răspuns:
Explicație pas cu pas:
a(2/9+7/9)-3/4=9/9-3/4=1-3/4=(4-3)/4=1/4
b) (9/4-3/11):9/11=(9·11-3·4)/44·11/9=(99-12)/4·1/9=87/36=29/12=2_5/12
Răspuns:
a.⁴⁾9/9-⁹⁾3/4=(36-27)/36=(9/36)⁽⁹=1/4
b.[(2*4+1)/4*3/11)]*11/9=(9/4*3/11)*11/9=27/44*11/9=3/4