Question

Vă rog frumos!
$a \: \frac{2}{3} = \frac{6}{?}$
$b \: \frac{?}{16} = \frac{3}{4}$
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Answer 1

Salut! ^-^

Voi nota cu "x" in loc de "?"

a) $\frac{2}{3}= \frac{6}{x}$

Vom inmulti in diagonala:

2*x=3*6

2x=18

x=18:2

x=9

b) $\frac{x}{16}= \frac{3}{4}$

Inmultim, din nou, in diagonala:

4*x=16*3

4x=48

x=48:4

x=12

Succes!