Answer:
13/30
Explanation:
Begin by getting 2/5 on the right side.
2/5-2/5 + m = 5/6 - 2/5
The lowest common denominator is 6 * 5 which are prime to each other.
m = 5/6 - 2/5 Multiply the tops and bottoms to make the bottoms 30
m = 5*5/(6*5) - (2*6)/(5*6)
m = (25 - 12)/30
m = 13/30