Fractions

By: Victoria

Add & Subtract Fractions

Explanation

ADDING FRACTIONS:

STEP 1: Make sure the denominators ( bottom numbers ) of the fractions are the same.


STEP 2: Then you add the numerators ( top numbers ) and put the answer above the denominator.


STEP 3: After that, you simplify ( if you need to ).


SUBTRACTING FRACTIONS:

STEP 1: Make the denominators ( bottom numbers ) the same by finding the LCM


STEP 2: Subtract the numerators ( top numbers ) and put the answer over the denominator.


STEP 3: Then, simplify the fraction ( if you need to ).

EXAMPLE

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MULTIPLYING FRACTIONS

EXPLANATION

STEP 1: Multiply the numerators of the fractions.


STEP 2: Multiply the denominators.


STEP 3: Simplify and/or turn it into a mixed number ( if you need to ).

EXAMPLE

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DIVIDING FRACTIONS

EXPLANATION

STEP 1: Keep the first fraction the same.


STEP 2: Change the division sign to a multiplication sign.


STEP 3: Flip the second fraction ( the flipped fraction is called a reciprocal ).


STEP 4: Multiply the first fraction by that reciprocal.


STEP 5: Simplify the fraction and/or turn it into a mixed number ( if you need to ).

EXAMPLE

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MULTIPYING DECIMALS

EXPLANATION

STEP 1: Multiply the decimals just like regular multiplication.


STEP 2: Count how many numbers are to the right of the decimal in the equation.


STEP 3: Count that many places over on your solution and put in your decimal.

EXAMPLE

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DIVIDING DECIMALS

EXPLANATION

STEP 1: Move the decimal to make the divisor a whole number.


STEP 2: Move the dividend's decimal as many places as you moved the divisor.


STEP 3: Divide regularly.


STEP 4: Bring the decimal up to your solution.

EXAMPLE

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