Question

va rog frumos sa ma ajutati dau coroana si ma abonez! acest ex trebuie facut in doua modalitati!!!​

Answer 1

Răspuns:

2/3·(⁴⁾1/6+5/24)=2/3·(4/24+5/24)=2/3·9/24=18/72=1/4

inmultim fractia 2/3 cu fiecare membru din paranteza

2/3·1/6+2/3·5/24=⁴⁾1/9+5/36=4/36+5/36=9/36=1/4

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1/7·(⁶⁾7/15+⁵⁾3/18)=1/7·(42/90+15/90)=1/7·57/90=57/630

1/7·7/15+1/7·3/18=⁴²⁾1/15+⁵⁾3/126=42/630+15/630=57/630