Question

$\frac{a}{b} = \frac{2}{3} \\ \frac{2a + 3b}{3a + 2b} =$
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Answer 1

Răspuns:

13/12

Explicație pas cu pas:

a/b=2/3 => 3a=2b

(2a+3b) / (3a+2b) = (2a+3b) / (2b+2b) = (2a+3b) / 4b= (4b+9b) / 12b = 13b/12b = 13/12