Question

5/8 dintr-o scandura masoara 2 m. Cat este lungimea scanduri

Answer 1

$\it \dfrac{5}{8}\cdot \ell=2 \Rightarrow \ell=2\cdot\dfrac{8}{5}=2\cdot1,6=3,2\ m$

Answer 2

5/8 • x= 2

5x/8= 2 (•8)

5x/8= 16/8 (reducem numitorul)

5x= 16

x= 16/5

x=3,2 m (lungimea scândurii)