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Автор - vlab18

сократите дробь используя признаки делимости 30/42, 33/39, 45/51. 12/60, 50/100​

Ответ

Автор - cvsvsh

Ответ:

 frac{30}{42}  =  frac{30 div 6}{42 div 6}  =  frac{5}{7}

 frac{33}{39}  =  frac{33 div 3}{39 div 3}  =  frac{11}{13}

 frac{45}{51}  =  frac{45 div 3}{51 div 3}  =  frac{15}{17}

 frac{12}{60}  =  frac{12 div 12}{60 div 12}  =  frac{1}{5}

 frac{50}{100}  =  frac{50 div 50}{100 div 50}  =  frac{1}{2}

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