Solve 8*10^-9-6*10^-9

$$8 \times { 10 }^{ -9 } -6 \times { 10 }^{ -9 }$$

Evaluate

$$\frac{1}{500000000}=2 \cdot 10^{-9}$$

Solution Steps

Calculate 10 to the power of -9 and get \frac{1}{1000000000}.

$$8\times \frac{1}{1000000000}-6\times 10^{-9}$$

Multiply 8 and \frac{1}{1000000000} to get \frac{1}{125000000}.

$$\frac{1}{125000000}-6\times 10^{-9}$$

Calculate 10 to the power of -9 and get \frac{1}{1000000000}.

$$\frac{1}{125000000}-6\times \frac{1}{1000000000}$$

Multiply 6 and \frac{1}{1000000000} to get \frac{3}{500000000}.

$$\frac{1}{125000000}-\frac{3}{500000000}$$

Subtract \frac{3}{500000000} from \frac{1}{125000000} to get \frac{1}{500000000}.

$$\frac{1}{500000000}$$

Factor

$$\frac{1}{2 ^ {8} \cdot 5 ^ {9}} = 2 \times 10^{-9}$$