Exercise 22 Page 65

We want to write the given fraction as a decimal number. - 13/11Let's ignore the negative sign for just a moment. Recall that 13 11 means 13÷ 11. Therefore, we will divide the numerator by the denominator. Let's do it!

We can see that the pattern starts to repeat itself after a few steps. This means that the decimal is a repeating decimal. We can write it using bar notation. Remember, the bar goes over the decimal part that repeats itself. 1.181818... = 1.18 We found that 1311 written as a decimal is 1.18. Therefore, - 1311 written as a decimal is - 1.18.