These are decimal numbers, and dots above some of the digits make them recurring decimals. One dot means the digit under it repeats infinitely. In other words, it goes on forever (and ever and ever).

1/3 can be written as 0.33333… (with a string of 3s going on forever) and 4/9 can be written as 0.44444… . We call these recurring decimals. Use a calculator to see what 1/11, 2/11 and 3/11 are as ...