my numerator is a prime number

My denominator is divisible by 2
i am equivalent to 1/5

3 answers

The denominator must be divisible by both 2 and 5

so 1/5 = 2/10 = 4/20 = 6/30 = ...

clearly it must be 2/10 , where 2 is the only prime number. (2 is the only even prime number , all the other numerators are even)
USE MULTIPLYING BY 1 TO FIND AN EXPRESSION EQUIVALENT TO 8/5 WITH A DENOMINATOR OF 5A
Very bade