Find the common denominator first
3 - 3,6,9,12,15
5- 5,10,15
15 is the common denominator
( common denominator ÷ denominator ) × numerator = new numerator
( 15 ÷ 3 ) × 4 = 20
(15 ÷ 5 ) × 2 = 6
Here is you're answer:
In order to find the answer you have to find the common denominator and then subtract.
Therefore you're answer is "2/15."
Hope this helps!
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