• Fractions
  • Equivalent fractions
  • Adding fractions
  • Subtracting fraccions
  • Multiplying fractions
  • dividing fractions
  • Simplyfying fractions



A fraction is a part of a whole.We call the top number the Numerator, it is the number of parts you have.
We call the bottom number the Denominator, it is the number of parts the whole is divided into.

You just have to remember those names! (If you forget just think "Down"-ominator)



Equivalent FractionsSome fractions may look different, but are really the same

Adding Fractions

There are 3 Simple Steps to add fractions:
  • Step 1: Make sure the bottom numbers (the denominators) are the same
  • Step 2: Add the top numbers (the numerators). Put the answer over the same denominator.
  • Step 3: Simplify the fraction (if needed)



Example 1:

1
+
1


4
4


Step 1. The bottom numbers are already the same. Go straight to step 2.


Step 2. Add the top numbers and put the answer over the same denominator:


1
+
1
=
1 + 1
=
2




4
4
4
4
Step 3. Simplify the fraction:
2
=
1


4
2


Subtracting Fractions

There are 3 simple steps to subtract fractions
  • Step 1. Make sure the bottom numbers (the denominators) are the same
  • Step 2. Subtract the top numbers (the numerators). Put the answer over the same denominator.
  • Step 3. Simplify the fraction.
Example 1:
3

1


4
4

Step 1. The bottom numbers are already the same. Go straight to step 2.
Step 2. Subtract the top numbers and put the answer over the same denominator:



3

1

3 – 1

2




4
4
4
4

Step 3. Simplify the fraction:
2
=
1


4
2
Multiplying FractionsMultiply the tops, multiply the bottoms
There are 3 simple steps to multiply fractions
1. Multiply the top numbers (the numerators).
2. Multiply the bottom numbers (the denominators).

3. Simplify the fraction if needed.


Dividing Fractions
Turn the second fraction upside down, then just multiply

There are 3 Simple Steps to Divide Fractions:
  • Step 1. Turn the second fraction (the one you want to divide by) upside-down(this is now a reciprocal).
  • Step 2. Multipl the first fraction by that reciprocal
  • Step 3. Simplify the fraction (if needed)

Simplifying FractionsTo simplify a fraction, divide the top and bottom by the highest number that can divide into both numbers exactly.


http://www.visualfractions.com/