Step 1:
The first step to converting 154990.18027631 to a fraction is to re-write 154990.18027631 in the form p/q where p and q are both positive integers. To start with, 154990.18027631 can be written as simply 154990.18027631/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 154990.18027631, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 154990.18027631/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 154990.18027631/1 each by 100000000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 154990.18027631 as a fraction:
774951/5 / 1