Tuesday, November 17, 2009

Daily Scribe!

Today in math class, we reviewed turning fractions into decimals, and we learned that the least common multiple is the same as the lowest common denominator in a fractions. You turn a fraction into a decimal by dividing the numerator by the denominator. When you're turning a mixed number into a decimal, the decimal will be more than one, and the whole number will be before the decimal point. For example, if the mixed number was 2 and 1/10, the decimal would be 2.10 .
To find the decimal of a fraction, you can put the fraction over 100, then it is easier to find the decimal. For example, if you take 1/5 and put it over 100 as 20/100, it sound like 20 hundreths, which is written as .02 in decimal form.
We learned about two kinds of decimals called terminating and repeating decimals. A repeating decimal is a decimal that never ends, and goes on and on and on and on and on repeating the same 1 or 2 numbers. An example of a terminating decimal is 0.3176 because it doesn't repeat the same numbers on and on forever, and it comes to an end after 4 numbers. On the other hand, the decimal 0.33333 repeats the same number over and over again, which means it is a repeating decimal.
HOW TO TURN A REPEATING DECIMAL INTO A FRACTION!
1. Identify how many digits there are that repeat over and over again.
2. Place the repeating digits in a fraction over the same amount of 9's.
3. Simplify as much as possible.
For Example: the repeating decimal 0.66 would be 6/9, which can be reduced to 2/3
☺ BY ASHLEY V ☺

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