SOLUTION: Well. I need help with distributive property and ratonal numbers. we were given problems at school and I dont understand how to do those problems. Example: 0.5(12x+80)And we cann

Question 343865: Well. I need help with distributive property and ratonal numbers. we were given problems at school and I dont understand how to do those problems. Example:
0.5(12x+80)And we cannot use a calculator on the test. so please help asap!! and i also need help on finding the sum or difference of fractions Example:
1/3 - 2/9 I just need you to please help me go through the problem step by step. & then give me the answer. thank you!! email me! secretrockstar35@aol.com
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Bring the multiplier inside the parentheses and multiply everything inside by it.

It's that simple.

OK?
.
.
.
Fractions, to add or subtract you need a common denominator.
Quickest way is to multiply the two denominators you have together.

You can use a common denominator or

So then

If you don't use the lowest common denominator (LCD), you will have to simplify your final answer. In your case was the LCD.
Another example,

In that case, 40 was the LCD.
OK?
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