3(4/7)addieren um 5(1/2) zu erhalten

Hallo Anonymous,

hier eine 2. Möglichkeit:

x + (3+4/7) = (5+1/2)    ->   x =  (5+1/2) - (3+4/7)

$$\left({\mathtt{5}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{1}}}{{\mathtt{2}}}}\right){\mathtt{\,-\,}}\left({\mathtt{3}}{\mathtt{\,\small\textbf+\,}}{\frac{{\mathtt{4}}}{{\mathtt{7}}}}\right) = {\frac{{\mathtt{27}}}{{\mathtt{14}}}} = {\mathtt{1.928\: \!571\: \!428\: \!571\: \!428\: \!6}}$$

Gruß radix !

3(4/7)=3.571..
5(1/2)= 5.5

5.5-3.571..=     1.9286..

addiere 1.9286 zu den 3.571 und du erhälst die 5.5:)