Final answer:
To write 09 as a fraction, it can be expressed as 9/10.
Step-by-step explanation:
To write 09 as a fraction, we need to understand that any number with a zero before the decimal point can be expressed as a fraction with the denominator being a power of ten. In this case, 09 can be written as 9/10.
The zero before the decimal point represents that there are no whole units and the 9 after the decimal point represents 9 tenths.