Răspuns:
Vezi rezolvarea mai jos:
Explicație pas cu pas:
1) a) [tex]\frac{7}{5} = 1\frac{2}{5}[/tex]
b) [tex]\frac{13}{5} = 2\frac{3x}{5}[/tex]
c) [tex]\frac{19}{5} = 3\frac{4}{5}[/tex]
d) [tex]\frac{26}{5} = 5\frac{1}{5}[/tex]
2) a) 2[tex]\frac{1}{7} = \frac{2*7+1}7} = \frac{15}{7}[/tex]
b) 3[tex]\frac{2}{7} = \frac{3*7+2}{7} = \frac{23}{7}[/tex]
c) 4[tex]\frac{3}{7} = \frac{4*7+3}{7} = \frac{31}{7}[/tex]
d) 5[tex]\frac{4}{9} = \frac{5*9+4}{9} = \frac{49}9}[/tex]
3) a) [tex]\frac{13}{6} = 13:6 = 2.16[/tex]
2<[tex]\frac{13}{6} <3[/tex]
b) [tex]\frac{17}{6} = 17:6 = 2.83[/tex]
2<[tex]\frac{17}{6} <3[/tex]
c) [tex]\frac{38}{10} = 38:10 = 3.8[/tex]
3<[tex]\frac{38}{10} <4[/tex]
d) [tex]\frac{65}{21} = 65:21 = 3.09[/tex]
3< [tex]\frac{65}{21} < 4[/tex]
4) 6g = 23kg
g = ?
g = 23:6
g = 3.83 kg
