We have the next table
Power of 10 Decimal Form Fraction Form
10^0 1 1
10^(-1) 0.1 1/10
10^(-2) 0.01 1/100
10^(-3) 0.001 1/1000
10^(-4) 0.0001 1/10000
10^(-5) 0.00001 1/100000
a. in the case of decimal numbers the number 1 moves to the right after the decimal point the number of units given by the power.
In the case of the fraction, the denominator increases the power indicated but positive
b. In the numerator put 1 and in the denominator put 1 and 12 zeros to the right
[tex]10^{-12}=\frac{1}{1000000000000}[/tex]
