give the answer to the following opeartion in lowest terms: 1/5 + 5/9 + 2/15 =

Find a Common Denominator.

 

5, 9, 15

 

5*9= 45

9*5=45

15*3=45

 

45 is a Common Denominator.

 

1/5   =    5*9 .   So do the same to the numerator   1*9 =9

 

9/45

 

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5/9    =   9*5=4 . So do the same do the numerator.      5*5=25

 

25/45

 

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2/15    =     15*3.     So do the same to the numerator.     2*3  = 6

 

 

9/45+ 25/45 + 6/25

 

$${\frac{\left({\mathtt{9}}{\mathtt{\,\small\textbf+\,}}{\mathtt{25}}{\mathtt{\,\small\textbf+\,}}{\mathtt{6}}\right)}{{\mathtt{45}}}}$$

 

= 40

 

40/45  = 8/9 (Simplified)

 

 

8/9