Question

dacă 0,3 a este egal cu 0,5 b calculaţi a supra b şi b subra a plsss dau coroana

Answer 1

$0.3a = 0.5b \: | \times 10$

$3a = 5b \: | \div 5b$

$\frac{3a}{5b} = 1$

$\frac{3}{5} \times \frac{a}{b} = 1 \: | \div \frac{3}{5}$

$\frac{a}{b} = \frac{1}{ \frac{3}{5} }$

$\frac{a}{b} = 1 \times \frac{5}{3}$

$\frac{a}{b} = \frac{5}{3}$

$3a = 5b \: | \div 3a$

$1 = \frac{5b}{3a}$

$\frac{5b}{3a} = 1$

$\frac{5}{3} \times \frac{b}{a} = 1 \: | \div \frac{5}{3}$

$\frac{b}{a} = \frac{1}{ \frac{5}{3} }$

$\frac{b}{a} = 1 \times \frac{3}{5}$

$\frac{b}{a} = \frac{3}{5}$