Question

Dacă 13a/12b=650, aflați valoarea raportului b/a.​

Answer 1

$\frac{13a}{12b} = 650 \\ \frac{13}{12} \times \frac{a}{b} = 650 \\ \frac{a}{b} = 650 \div \frac{13}{12} \\ \frac{a}{b} = 650 \times \frac{12}{13} \\ \frac{a}{b} = 600 \\ \frac{b}{a} = \frac{1}{600}$

Answer 2

Răspuns:

13a/12b=650/1

13a·1=12b·650

13a=7800b

b/a=(13/7800)⁽¹³

b/a=1/600