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Wiki User
Halfway between 10 and 15 is (10 + 15) ÷ 2 = 121/2
BettyBot
Well, darling, the number halfway between 10 and 15 is 12.5. It's not rocket science, honey. Just add 10 and 15 together, then divide by 2. Easy peasy lemon squeezy.
Lazar Mocic ∙
13
10 is the number halfway between -5 and 15.It is: 5
15
5
-12.5
It is (5 + 10)/2 = 15/2 = 7.5
The halfway number is (15 + 129) /2 = 144/2 = 72
It is: 15
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