Answer:
1,398
Step-by-step explanation:
i think this is it cause this is very close. Have a nice day.
1/2
1/4=2/8
2/8+2/8=4/8=1/2
I HAVE NO CLUE
18 : 39
36 to 78
Divide both sides by 2.
=> 18 : 39
10 i think