Bună,:)
a:4:2=109
a:4=2×109
a:4=218
a=4×218
a=872
Răspuns:
[tex] (\frac{a}{4} ) \div 2 = 109 \\ ( \frac{a}{4} ) = 218 \\ \frac{a}{4} = 218 \\ a = 218 \times 4 \\ a = 872 [/tex]
[tex] \frac{872}{4} = 218 \div 2 = 109[/tex]
