How do you change the repeating decimal .3333333 into a percent? - Answers

Step 1: Let x equal the repeating decimal you are trying to convert to a fraction Step 2: Examine the repeating decimal to find the repeating digit(s) Step 3: Place the repeating digit(s) to the left of the decimal point Step 4: Place the repeating digit(s) to the right of the decimal point Step 5: Subtract the left sides of the two equations.Then, subtract the right sides of the two equations As you subtract, just make sure that the difference is positive for both sides Now let's practice converting repeating decimals to fractions with two good examples Example #1: What rational number or fraction is equal to 0.55555555555 Step 1: x = 0.5555555555 Step 2: After examination, the repeating digit is 5 Step 3: To place the repeating digit ( 5 ) to the left of the decimal point, you need to move the decimal point 1 place to the right Technically, moving a decimal point one place to the right is done by multiplying the decimal number by 10. When you multiply one side by a number, you have to multiply the other side by the same number to keep the equation balanced Thus, 10x = 5.555555555 Step 4: Place the repeating digit(s) to the right of the decimal point Look at the equation in step 1 again. In this example, the repeating digit is already to the right, so there is nothing else to do. x = 0.5555555555 Step 5: Your two equations are: 10x = 5.555555555 x = 0.5555555555 10x - x = 5.555555555 − 0.555555555555 9x = 5 Divide both sides by 9 x = 5/9 So... .3333 (repeating) is 3/9