How do i solve 3 and 4

EXERCISES P.1 In Exercises 1-2, express the given rational number as a repeating decimal. Use a bar to indicate the repeating digits. 1. OIN 2. 11 In Exercises 3-4, express the given repeating decimal as a quotient of integers in lowest terms. 3. 0.12 4. 3.27 5. Express the rational numbers 1/7, 2/7, 3/7, and 4/7 as repeating decimals. (Use a calculator to give as many decimal decimal