Express each of the following non-terminating recurring decimals as a rational number in simplest form and identify its repeating block (period).
(a) 0.18
(b) 1.235
(c) 0.013
a. Convert 0.18 to a rational number and state its repeating block.
b. Convert 1.235 to a rational number and state its repeating block.
c. Convert 0.013 to a rational number and state its repeating block.