[tex]\dfrac{\ \ 102^{(^6}}{210} =\dfrac{17}{35}[/tex]
Observam ca fractia se poate simplifica prin 2 si prin 3, deci se poate simplifica prin 6.
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[tex]\dfrac{\overline{a0a}}{\overline{b0b}}=\dfrac{100a+a}{100b+b}=\dfrac{101a}{101b}=\dfrac{a}{b}[/tex]
Am simplificat, evident, prin 101.
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[tex]\dfrac{1010}{2020}=\dfrac{101}{202}=\dfrac{101\cdot1}{101\cdot2}=\dfrac{1}{2}[/tex]
Am simplificat, prima data, cu 10 (de obicei se taie cate un zerou), apoi am simplificat cu 101.
