Risolvi la seguente moltiplicazione
$$\frac{42}{48}\times\frac{63}{61}$$
$$M.C.D.(42;48)=6\quad M.C.D.(63;81)=9$$
$$\frac{7}{8}\times\frac{7}{9}=$$
$$\frac{49}{72}$$
$$\frac{42}{48}\times\frac{63}{61}$$
$$M.C.D.(42;48)=6\quad M.C.D.(63;81)=9$$
$$\frac{7}{8}\times\frac{7}{9}=$$
$$\frac{49}{72}$$