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[tex]calculati [/tex]
[tex](3 \frac{1}{2} \div 2 \frac{1}{3}) \div (6 \div \frac{12}{19} ) = [/tex]
Ajutorrrr.


Răspuns :

= ( 7/2 x 3/7 ) : ( 6 x 19/12) = 
                3/2 x 2/19 = 
                     3/19 
[tex](3 \dfrac{1}{2} \div 2 \dfrac{1}{3} ) \div (6 \div \dfrac{12}{19} ) = \\ \\ = ( \dfrac{7}{2} \div \dfrac{7}{3} ) \div ( 6 \times \dfrac{19}{12}) \\ \\ = (\dfrac{7}{2} \times \dfrac{3}{7} ) \div \frac{19}{2} \\ \\ = \dfrac{3}{2} \times \dfrac{2}{19} = \\ \\ = \dfrac{3}{19} [/tex]