__MULTIPLYING FRACTIONS__1. Multiply numerator X numerator (NO COMMON DENOMINATOR)

2. Make mixed number a improper fraction

3. cross reduce or simplify

4. same signs answer is positive/different signs answer is negative

__Multiplicative Inverse/Reciprocal__*always keep your sign the same and flip your number

__DIVIDING FRACTIONS__Don’t divide; you multiply by the reciprocal…

1. change division sign to multiplication

- flip the second part of the problem…never the first!

__EQUATION RULES:__

__ADDING/SUBTRACTING EQUATIONS__Inverse operation means “undo”

*get variable by itself

*do opposite of what is being done

*if subtracting you must add the opposite

**Multiplication Equations**

**Divide by the number that is with the variable on both sides of the equation (equals sign)**

***Opposite signs answer is negative.**

**1.**

**either add or sub (use opposite sign/same #)**

**2. Divide by # with variable**

**(don’t change the number or sign)**

**When solving for answer:**

***same signs= positive**

***different signs= negative**

__PRIME/COMPOSITE NUMBERS:__**Prime #’s: greater than one, has exactly 2 factors, 1 and itself**

**Ex. 2,3,5,7,11,13,17,19**

**Composite #’s: greater than one, has more than 2 factors**

**Ex. 4,6,8,9,10,12,14,15,16,18**

**#’s 0 and 1: are neither prime or composite**

__Add/Subtract Fractions__1. Find a common denominator(preferably LCD).

2. Multiply numerator by the same number you multiplied denominator.

3. Use sign of larger number (might need to borrow)

4. Simplify