Explicație pas cu pas:
a)7 pe 5
[tex] \frac{7}{5} = \frac{7 \times 2}{5 \times 2} = \frac{14}{10} = \frac{140}{100} = \frac{1400}{1000} = 1.4 \\ [/tex]
b)3 pe 2
[tex]\frac{3}{2} = \frac{3 \times 5}{2 \times 5} = \frac{15}{10} = \frac{150}{100} = \frac{1500}{1000} = 1.5 \\ [/tex]
c)1 pe 4
[tex] \frac{1}{4} = \frac{25}{4 \times 25}= \frac{25}{100} = \frac{2.5}{10} = \frac{250}{1000} = 0.25 \\ [/tex]
d)19 pe 50
[tex]\frac{19}{50} = \frac{19 \times 2}{50 \times 2}= \frac{38}{100} = \frac{3.8}{10} = \frac{380}{1000} = 0.38 \\ [/tex]
e)122 pe 25
[tex] \frac{122}{25} = \frac{122 \times 4}{25 \times 4} = \frac{488}{100} = \frac{48.8}{10} = \frac{4880}{1000} = 4.88 \\ [/tex]
f)74 pe 125
[tex]\frac{74}{125} = \frac{74 \times 8}{125 \times 8} = \frac{592}{1000} = \frac{59.2}{100} = \frac{5.92}{10} = 0.592 \\ [/tex]
g)5 pe 8
[tex]\frac{5}{8} = \frac{5 \times 125}{8 \times 125} = \frac{625}{1000} = \frac{62.5}{100} = \frac{6.25}{10} = 0.625 \\[/tex]
h)39 pe 40
[tex]\frac{39}{40} = \frac{39 \times 25}{40 \times 25} = \frac{975}{1000} = \frac{97.5}{100} = \frac{9.75}{10} = 0.975 \\ [/tex]
