Solve 2.56*10^5=4.2*10^-7

$$2.56 \times 10 ^ { 5 } = 4.2 \times 10 ^ { - 7 }$$

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Solution Steps

Calculate 10 to the power of 5 and get 100000.

$$2.56\times 100000=4.2\times 10^{-7}$$

Multiply 2.56 and 100000 to get 256000.

$$256000=4.2\times 10^{-7}$$

Calculate 10 to the power of -7 and get \frac{1}{10000000}.

$$256000=4.2\times \frac{1}{10000000}$$

Multiply 4.2 and \frac{1}{10000000} to get \frac{21}{50000000}.

$$256000=\frac{21}{50000000}$$

Convert 256000 to fraction \frac{12800000000000}{50000000}.

$$\frac{12800000000000}{50000000}=\frac{21}{50000000}$$

Compare \frac{12800000000000}{50000000} and \frac{21}{50000000}.

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