Resolver 5*2^-3+7*4^-2

$$5 \cdot 2 ^ { - 3 } + 7 \cdot 4 ^ { - 2 }$$

Calcular

$$\frac{17}{16}=1.0625$$

Pasos da solución

Calcula 2 á potencia de -3 e obtén \frac{1}{8}.

$$5\times \frac{1}{8}+7\times 4^{-2}$$

Multiplica 5 e \frac{1}{8} para obter \frac{5}{8}.

$$\frac{5}{8}+7\times 4^{-2}$$

Calcula 4 á potencia de -2 e obtén \frac{1}{16}.

$$\frac{5}{8}+7\times \frac{1}{16}$$

Multiplica 7 e \frac{1}{16} para obter \frac{7}{16}.

$$\frac{5}{8}+\frac{7}{16}$$

Suma \frac{5}{8} e \frac{7}{16} para obter \frac{17}{16}.

$$\frac{17}{16}$$

Factorizar

$$\frac{17}{2 ^ {4}} = 1\frac{1}{16} = 1.0625$$