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Mirela27
a fost răspuns

Calculeaza: ([tex] \frac{3}{14} [/tex] - [tex] \frac{4}{21} [/tex] + [tex] \frac{5}{28} [/tex] ) × ( -3 [tex] \frac{3}{7} [/tex] )

Răspuns :

Cpw
[tex]( \frac{3}{14} - \frac{4}{21} + \frac{5}{28} )*(-3 \frac{3}{7} )=[/tex]
[tex]=( \frac{18}{84} - \frac{16}{84} + \frac{15}{84} )*(- \frac{24}{7} )=[/tex]
[tex] \frac{17}{84}*(- \frac{24}{7} )=- \frac{17*2}{7*7} =- \frac{34}{49} [/tex]

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