1.75
It is 0.35 more than 1.4 (1.40) and 0.35 less than 2.1 (2.10).
To find the halfway point (the average), add the two numbers and divide by 2.
1.4 + 2.1 = 3.5
3.5 / 2 = 1.75
So 1.75 is half way between 1.4 and 2.1
1.75 is halfway between 1.4 and 2.1.
1.75
1.75
2.3
1.76
3.50
1.
1.7
The answer is 1414
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
21
34
(21 + 69)/2 = 90/2 = 45
The answer is 1414
19.5 is halfway between 18 and 21
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
21
It is: (18+21)/2 = 19.5
42
34
There is no "the" rational" number since there is an infinity of them. Start with the number halfway between the two: (1/10+1/11)/2 = 21/220. Then try halfway between 1/10 and 21/220, and then halfway between 1/10 and that on. And so on.
(21 + 69)/2 = 90/2 = 45
(21+29)/2 = 50/2 = 25
seventeen 13 + 4 = 17 = 21 - 4
14