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Daca a/7=5/3
a+7/7
Egal cu...


Răspuns :

a/7=5/3
3a=35
a=35/3
a+7/7=a+1=35/3+1=38/3

[tex] \frac{a}{7} = \frac{5}{3} \Rightarrow \frac{a}{7}+1 = \frac{5}{3}+1 \Rightarrow \frac{a+7}{7} = \frac{5+3}{3}\Rightarrow \frac{a+7}{7} = \frac{8}{3} [/tex]