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cum rezolv fractia supraetajata 1 pe 3 pe 1 pe 5?

Răspuns :


[tex] \frac{ \frac{1}{3} }{ \frac{1}{5} } [/tex]
O tratezi ca o impartire normala:
[tex] \frac{1}{3} \div \frac{1}{5} [/tex]
Acum stim ca:
[tex]x \div \frac{y}{z} = x\times \frac{z}{y} [/tex]
Deci impartirea la o fractie devine inmultirea cu fractia rasturnata

[tex] \frac{1}{3} \div \frac{1}{5} = \frac{1}{3} \times \frac{5}{1} = \frac{5}{3} [/tex]
[tex] \frac{ \frac{1}{3}}{ \frac{1}{5} } = \frac{1}{3}: \frac{1}{5} = \frac{1}{3} * \frac{5}{1} = \frac{5}{3} [/tex]