Question

Aflati nr rational care inmultit cu 56/90 da nr rational 35/27.

Answer 1

y/1·56/90=35/27
56y/90=35/27
56y·27=35·90
y=(35·90)/(56·27)=simplif.cu 7 si 3=(5·30)/(8·9)
y=150/72=simplif.cu 6=25/12
deci 25/12·56/90=1400/1080=simplif.cu 2=700/540=70/54=simplif.cu 2=35/27

Answer 2

n * $\frac{56}{90}=\frac{35}{27}$ 
$n\;=\;\frac{35}{27}\;\cdot\;\frac{90}{56}=(dupa\,simplificari)= 25/12=$