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70. Efectuati in colonita c) 0,52:1,3; g) 0,561:0,33; d) 2,002:09 va rog frumos! urgent dau coroana​

Răspuns :

Răspuns:

[tex]0.52 = \frac{52}{100} = \frac{13}{25} \\ 1.3 = \frac{13}{10} \\ \frac{13}{25} \times \frac{10}{13} = \frac{2}{5} = 0.4[/tex]

[tex]0.561 = \frac{561}{1000} \\ 0.33 = \frac{33}{100} \\ \frac{561}{1000} \times \frac{100}{33} = \frac{561}{330} = \frac{187}{110} = 1.7[/tex]

[tex]2.002 = \frac{2002}{1000} = \frac{1001}{500} \\ 0.9 = \frac{9}{10} \\ \frac{1001}{500} \times \frac{10}{9} = \frac{1001}{450} = 2.22(4)[/tex]

Ultimul cred că e scris greșit...