Basic Math Examples

$\frac{- 8.1 \cdot 10^{- 9}}{3 \cdot 10^{- 7}}$

Step 1

Group coefficients together and exponents together to divide numbers in scientific notation.

$(\frac{- 8.1}{3}) (\frac{10^{- 9}}{10^{- 7}})$

Step 2

Divide $- 8.1$ by $3$ .

$- 2.7 \frac{10^{- 9}}{10^{- 7}}$

Step 3

Subtract the exponent from the denominator from the exponent of the numerator for the same base

$- 2.7 \cdot 10^{- 9 - 7 \cdot - 1}$

Step 4

Multiply $- 7$ by $- 1$ .

$- 2.7 \cdot 10^{- 9 + 7}$

Step 5

Add $- 9$ and $7$ .

$- 2.7 \cdot 10^{- 2}$

Step 6

The result can be shown in multiple forms.

Scientific Notation:

$- 2.7 \cdot 10^{- 2}$

Expanded Form:

$- 0.027$