Question

Exercitiu/Exercițiile 7 și 8
Va rog
Dau coroană
Dau ce vreți voi ​

Answer 1

succes!sper ca te-am ajutat )

Answer 2

Răspuns:

7.

$2\frac{3}{5} =\frac{2*5+3}{5} =\frac{13}{5}$

$-5\frac{2}{7} =-\frac{5*7+2}{7} =-\frac{37}{7}$

$-1\frac{7}{9} =-\frac{1*9+7}{9} =\frac{16}{9}$

$13\frac{5}{4} =\frac{13*4+5}{4} =\frac{57}{4}$

$21\frac{5}{6} =\frac{21*6+5}{6} =\frac{131}{6}$

8.

$\frac{3}{2} =3:2=1 rest 1=1\frac{1}{2}$

$\frac{11}{4} =11:4=2rest 3=2\frac{3}{4}$

$-\frac{13}{5} =-13:5=-(2 rest 3)=-2\frac{3}{5}$

$\frac{27}{11} =27:11=2 rest 5=2\frac{5}{11}$

$-\frac{39}{13} =-39:13=-3$

$\frac{48}{12} =48:12=4$

$\frac{79}{23} =79:23=3 rest 10=3\frac{10}{23}$

$\frac{205}{100} =205:100=2 rest 5=2\frac{5}{100}=2\frac{1}{20}$

Explicație pas cu pas: