Solve 4,2*10^-2+4,2*10^-1

$$4,2 \cdot 10 ^ { - 2 } + 4,2 \cdot 10 ^ { - 1 }$$

Evaluate

$$0,462$$

Solution Steps

Calculate 10 to the power of -2 and get \frac{1}{100}.

$$4,2\times \frac{1}{100}+4,2\times 10^{-1}$$

Multiply 4,2 and \frac{1}{100} to get \frac{21}{500}.

$$\frac{21}{500}+4,2\times 10^{-1}$$

Calculate 10 to the power of -1 and get \frac{1}{10}.

$$\frac{21}{500}+4,2\times \frac{1}{10}$$

Multiply 4,2 and \frac{1}{10} to get \frac{21}{50}.

$$\frac{21}{500}+\frac{21}{50}$$

Add \frac{21}{500} and \frac{21}{50} to get \frac{231}{500}.

$$\frac{231}{500}$$

Factor

$$\frac{3 \cdot 7 \cdot 11}{2 ^ {2} \cdot 5 ^ {3}} = 0.462$$