Question

Doar punctele a,b,c,d va rog!!

Answer 1

Răspuns:

$a)\:2\frac{1}{3}\times\frac{9}{28}=\frac{2\times3+1}{3}\times\frac{9}{28}=\frac{\not7}{\not3}\times\frac{\not9}{\not28}=\bf\green{\frac{3}{4}}$

$b)\:1\frac{1}{2}\times4=\frac{1\times2+1}{2}\times4=\frac{3}{\not2}\times\not4=3\times2=\bf\red{6}$

$c)\:4\frac{1}{4}\times\frac{8}{17}=\frac{4\times4+1}{4}\times\frac{8}{17}=\frac{\not17}{\not4}\times\frac{\not8}{\not17}=\bf\orange{2}$

$d)\:2\frac{1}{2}\times7\frac{1}{5}=\frac{2\times2+1}{2}\times\frac{7\times5+1}{5}=\frac{\not5}{\not2}\times\frac{\not36}{\not5}=\bf\pink{18}$