Answer:
10010
18 in binary is 10010.
if you want to know how to convert decimal to binary
here is the example:
Write down the number.
Divide it by 2 and note the remainder.
Divide the quotient obtained by 2 and note the remainder.
Repeat the same process till we get 0 as the quotient.
Write the values of all the remainders starting from the bottom to the top.
