Question

ajutatima!dau coroana!​

Answer 1

Răspuns:

$3\frac{1}{2} = \frac{6+1}{2} = \frac{7}{2}$

$1\frac{1}{3} = \frac{3+1}{3} = \frac{4}{3}$

$(\frac{7}{2} -\frac{1}{2} )+(\frac{4}{3} -\frac{1}{3} ) = \frac{7-1}{2} +\frac{4-1}{3} = \frac{6}{2} +\frac{3}{3} =3+1=4$