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dacă 25 cm=25/100m atunci 50 cm=

Răspuns :

25 cm = 25/100 = 1/4

50 cm  = 2 x 1/4 = 2/4 = 1/2 = 50/100

[tex]25 \: cm \: = \frac{25}{100} = \frac{1}{4} [/tex]
[tex]50 \: cm \: = 2 \times \frac{1}{4} = \frac{2}{4} = \frac{1}{2} = \frac{50}{100} [/tex]

Succes! :)