Dividing Numbers in Scientific Notation

Steps to divide numbers in scientific notation are as follows:
1) Divide the coefficients (the first part of the numbers).
2) Subtract the powers of ten.
3) Adjust the result if necessary so that it's in scientific notation.

Example 1: Divide 2.1 x 107, by 5.6 x 103

Step 3. 0.375 x 104 is not in scientific notation because 0.375 is not between 1 and 10. So adjust the number into scientific notation.

.375 x 104 = 3.75 x 103
 Move decimal once to right to get thenumber between 1and 10.

 Moving once to rightincreases .375 by one power of 10, therefore...

 Compensate bydecreasing the power of 10 by

Example 2: Divide 4.1296 x 10-13 by 7.12 x 103

Step 3. 0.58 x 10-16 is not in scientific notation because 0.58 is not between 1 and 10. So adjust the number into scientific notation.
.58 x 10-16 = 5.8 x 10-17
 Move decimal once to right to get thenumber between 1and 10.

 Moving once to rightincreases .58 by one power of 10, therefore...

 ..we compensate bydecreasing the power of 10 by one
 Remember that one less than-16 is -17(move left on the number line).
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