Operations of Fractions

With Jose

How to add & subtract fractions

How Add Fractions.

Step 1. Make sure that the bottom numbers (Denominator) are the same.

Step 2. Add the top numbers (Numerator) then put the answers over the denominator.



Step 3. Simplify if needed.


How to Subtract Fractions

Step 1. Find the smallest (LCD) of the both numbers.


Step 2. Rewrite the fractions as equivalent fractions with the LCM the denominator.



That's how you add & subtract fractions.



Here is an example on how to add fractions

How to add fractions
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Now here's a short video on how to subtract fractions
How to subtract fractions
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How to multiply fractions

Step 1. Multiply across.


Step 2. Simplify your answer.


Here's an example

Multiplying Fractions
Here's my example
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Dividing fractions

Step 1.Keep one of the two fractions.


Step 2.Flip the numerator and denominator.


Step 3.Change the division sign with the x multiplication sign.


Step 4.Now multiply the new fraction with the one you kept the same.


Step 5. Simplify if needed.


Here's an example

Flocabulary - Dividing Fractions - Keep, Change, Flip
Here's my example
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Multiplying decimals

Step 1 Line them up


Step 2 Multiply them like normal.


Step 3 Look at the last digits of the two numbers and add them up.


Step 4 Add them to your final answer.

Here is my example
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Dividing Decimals

Step 1Set it up


Step 2 Move the decimals to the right on both until you are dividing BY a whole number


Step 3 Now, go for it

Here's my example
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