Quick Math Homework Help

For some people the word "Fractions" is not a happy word. Many people don't like adding fractions,or subtracting fractions because it has always been very confusing or frustrating. Here are 10 proven tips,tricks, or helpful information that can help everyone understand a little bit better.

For each tip or trick I will give the pros of the tip or trick,and the con of every tip or trick.

This trick has been around for a long time and can be very helpful if you don't want to calculate a least common multiple. (LCM)

3 x6 =18 1 x4 =4 and 18+4 = 22 (This will be the numerator).

Step 1. Multiply the denominators together

(4 x 5 =20 ) This gives you a common denominator.

Step 2. Divide the common denominator by the original denominators to determine your multipler.

20/4=5

20/5=4

Step 3. Multiply the numerator (top) by the factor from step 2.

20 20

20 20

Step 4. Calculate your numerator (top) by adding the numerators from step 3. Put your common denominator underneath. Simplify.

20 20

Pros: You don't have to find a least common multiple. Works with proper and improper fractions.

Cons: You can easily confuse the steps.

Most people find that this tip makes dividing fractions much easier. You keep the first fraction,change the sign from division to multiplication, and finally flip the last fraction (create a reciprical)

Pros: Gives you a systematic method for dividing fractions.

Cons: It can be confusing with mixed numbers. Remember to use the circle trick first!

Impress your friends and teachers with this fact. The bar used with fractions is called the Vinculum

Denominator

Numerator.

Think of the vinculum as a division sign. It is a line that separates the numerator and the denominator.

Find the Lowest Common Multiple (LCM) and the Greatest Common Factor ( GCF) of **16** and **24**

2x2x2 = 8

I call this the Circle Method. It is helpful when creating an improper fraction.

Step 1. Start at the bottom of the fraction. Multiply the denominator times the whole number.

Step 2. Then add the product from step 1, to the numerator.

Most people know their times tables and understand how much time they save when doing calculations. In the same way by memorizing this list of fractions can be a real time saver and help you with fractions and decimals.

1/4 = .25

1/2 = .5

3/4 = .75

1/3 = .333~

1/5 = .2

2/5 = .4

3/5 = .6

4/5 = .8

1/8 = .125

3/8 = .375

5/8 = .625

7/8 = .875

This method is a modified version of tip number 1. It is a mixture of adding fractions the traditional method, and the criss-cross method. The picture looks confusing, here goes the explanation:

Pros: Gives you a systematic method for creating improper fractions. Easy to understand

Cons: It can be confusing with mixed numbers. Some people will add the numbers first and then multiple,which will result in an error.

Pros: Saves you time and it improves your number sense.

Cons: It takes some work to memorize the decimals equivalents of the fractions. Make some flashcards!!!

2x2x2x1x2x3= 48