Question

Ajutor! Punctul b) +efectuare
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Answer 1

Răspuns:

b) $\frac{23-2}{9} : (\frac{213 -21 }{90} *\frac{225}{100} - \frac{13}{10} )$ = $\frac{21}{9} : (\frac{192}{90} *\frac{45}{20} -\frac{13}{10} )=$$\frac{7}{3} : ( \frac{96}{45} *\frac{45}{20} -\frac{13}{10} )$=

$\frac{7}{3} : (\frac{48}{10}- \frac{13}{10} )$= $\frac{7}{3} : \frac{35}{10}$= $\frac{7}{3} * \frac{10}{35}$= $\frac{2}{3}$