Question

$\frac{1}{2} a + \frac{1}{4}a + \frac{1}{8}a + a =$
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Answer 1

Respuesta:

$\frac{15}{8} a$

Explicación paso a paso:

$\frac{1}{2} a + \frac{1}{4} a + \frac{1}{8} a + a =$

$\frac{4}{4} \times \frac{1}{2} a + \frac{2}{2} \times \frac{1}{4} a + \frac{1}{8} a + \frac{8}{8} a =$

$\frac{4}{8} a + \frac{2}{8} a + \frac{1}{8} a + \frac{8}{8} a =$

$( \frac{4 + 2 + 1 + 8}{8} )a =$

$\frac{15}{8} a$