Please URGENT help due in soon

Answer:
First # is 6, second # is 12.
Step-by-step explanation:
This is because if we make the demoniators the same, the first equation will be 2/8 + x/8 =1 and 2/8+6/8=1. The second one if we make both of the denomiators 12, 4/12+8/12=1