[tex] \frac{x}{4} = \frac{3}{7} [/tex]
[tex]7x = 3 \times 4[/tex]
[tex]x = \frac{12}{7} [/tex]
[tex] \frac{1}{x} = \frac{1}{ \frac{12}{7} } = 1 \div \frac{12}{7} = 1 \times \frac{7}{12} = \frac{7}{12} [/tex]
Răspuns:
x/4=3/7
x/1=3*4/7
x/1=12/7
1/x=7/12
Explicație pas cu pas:
