# Operations with Fractions/Decimals

### By: Ann V

## Adding and Subtracting

## Explanation

Step 2: Once you find a common denominator, see how many multiples it took to get there. Multiply that number for both your numerator and denominator.

Step 3: After you have found the common denominators, look at your equation to see if you should either add or subtract the two fractions. If you can simply your answer once your done (make it any smaller) do so!

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## Multiplying

## Explanation

Step 2: Once you get your product, you might think your done; but if you can simplify your product, do so! Simplify means to simply reduce your answer.

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## Dividing

## Explanation

Step 2: Rewrite your division problem into multiplication form. Write your original fraction first times your reciprocal of your second fraction.

Step 3: Multiply your two fractions to get your product; but your not done yet! If you can simplify your product, do so! Simplify just means to simply reduce your answer.

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## Multiplying Decimals

## Explanation

Step 2: Act like the decimals aren't there, and do your regular U.S. algorithm by multiplying.

Step 3: When you get your product, keep the decimals back. Count the total decimal places and put that many places in the product.

## Example

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## Dividing Decimals

## Explanation

Step 2: Multiply your numerator and denominator by the power of ten to make your divisor a whole number.

Step 3: Divide your new dividend and divisor. Once you find the product, count the total decimal places and put that many places back in you product.