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How Do You Turn a Fraction Into a Repeating Decimal?
Convert 4/9 into a decimal.
Summary
- A fraction bar means the same thing as division
- 4, the numerator of the fraction, will be the dividend when we divide
- 9, the denominator of the fraction, will be the divisor when we divide
- We got the repeating decimal 0.44444...
- The bar above the 4 in the final decimal means that 4 repeats

Notes
-
- A fraction bar means the same thing as division
- So we can rewrite our fraction as a long division problem
- 4, the numerator of the fraction, will be the dividend when we divide
- 9, the denominator of the fraction, will be the divisor when we divide
-
- 4, the numerator of the fraction, will be the dividend when we divide
- 9, the denominator of the fraction, will be the divisor when we divide
-
- A fraction bar means the same thing as division
- So we can rewrite our fraction as a long division problem
-
- Adding the 0 after the decimal turns this into a problem involving division with decimals
- These zeros are called trailing zeros
-
- 9 goes into 40 wholly 4 times every time
- This gives us 36 every time we multiply
- Subtracting 36 from 40 always gives us 4 again
- Tacking on the trailing zero gives us 40, and the cycle starts over again!
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- We got the repeating decimal 0.44444...
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- We can represent the repeating decimal 0.44444... as 0.4 with a bar above the 4