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could you make it to were i can add more than 2 fractions? ty

 Aug 28, 2014

Best Answer 

 #1
avatar+3454 
+5

You can add as many fractions together as you want, but you have to make sure they all have common denominator. (or common bottom number)

For example, say you had:

 

$$\frac{3}{4} + \frac {1}{2} + \frac{5}{8}$$

 

First, we have to make all these number have a common denominator. To do this, multiply the top and bottom of the first fraction by 2, and the top and bottom of the second fraction by 4.

 

$$\frac{3\times2}{4\times2}+\frac{1\times4}{2\times4}+\frac{5}{8}$$

 

$$\frac{6}{8} + \frac{4}{8} + \frac{5}{8}$$

 

Great! Now all these bottom numbers are the same, so we just add the top numbers, and keep the 8 on the bottom.

 

$$\frac{6+4+5}{8}$$

 

$$\frac{15}{8}$$

 

or you could write this as:

 

$$1\frac{7}{8}$$

 Aug 28, 2014
 #1
avatar+3454 
+5
Best Answer

You can add as many fractions together as you want, but you have to make sure they all have common denominator. (or common bottom number)

For example, say you had:

 

$$\frac{3}{4} + \frac {1}{2} + \frac{5}{8}$$

 

First, we have to make all these number have a common denominator. To do this, multiply the top and bottom of the first fraction by 2, and the top and bottom of the second fraction by 4.

 

$$\frac{3\times2}{4\times2}+\frac{1\times4}{2\times4}+\frac{5}{8}$$

 

$$\frac{6}{8} + \frac{4}{8} + \frac{5}{8}$$

 

Great! Now all these bottom numbers are the same, so we just add the top numbers, and keep the 8 on the bottom.

 

$$\frac{6+4+5}{8}$$

 

$$\frac{15}{8}$$

 

or you could write this as:

 

$$1\frac{7}{8}$$

NinjaDevo Aug 28, 2014

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