23/100
Step-by-step explanation:
0.23 is in two decimal place: 2 is in the 10th place, while the 3 is in the hundredth place.
To convert a decimal to fraction, we pick the last place value of the decimal.
Since hundredth is the last place value, we make the number after the decimal point into a whole number then divide by the last decimal place value.
Our decimal becomes:

The division by 100 indicates the last place decimal of 0.23
Therefore, 0.23 into fraction = 23/100