It is: (15+37)/2 = 26
(2/5 + 8/15) / 2 = 7/15
It is (5 + 10)/2 = 15/2 = 7.5
1 2 3 5 7 11 13 15
Well, isn't that a happy little question! To find the number halfway between 15 and 25, we can simply add them together and divide by 2. So, 15 + 25 equals 40, and when we divide that by 2, we get 20. There you go, a lovely number right in the middle, just waiting to bring balance to your painting of numbers.
The halfway number is (15 + 129) /2 = 144/2 = 72
It is (-15 + 20)/2 = 5/2 = 2.5
It is: (15+61)/2 = 38
It is: (15+37)/2 = 26
The number at the midpoint of these two numbers is (15 + 27)/2 = 21
(2/5 + 8/15) / 2 = 7/15
There cannot be any number between two identical numbers.
Well, honey, if you wanna find the number smack dab in the middle of -5 and 15, you just average those two bad boys. So, (-5 + 15) / 2 = 5. There you have it, sweet cheeks, 5 is the magic number that's halfway between those two extremes.
There is no such thing as a least common number.
(10+20)/2 = 30/2 = 15
It is (5 + 10)/2 = 15/2 = 7.5
Then number half way between them is their mean average: (-3/7 + -15/14) ÷ 2 = (-6/14 + -15/14) ÷ 2 = -21/14 ÷ 2= -21/28 = -3/4