Question

calculează suma:o pătrime +un sfert+o jumatate​

Answer 1

Răspuns:

$\frac{1}{4} = o \: patrime \: = un \: sfert$

$\frac{1}{2} = o \: jumatate$

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$\frac{1}{4} + \frac{1}{4} + \frac{1}{2} = \\ \\ = \frac{1 + 1}{4} + \frac{1}{2} = \\ \\ = \frac{2}{4} {}^{(2} + \frac{1}{2} = \\ \\ = \frac{1}{2} + \frac{1}{2} = \\ \\ = \frac{1 + 1}{2} = \\ \\ = \frac{2}{2} = \\ \\ = 1$