Answer:
-2.25 + 1 1/10 = -1.15
-2.25 + 1 2/10 = -1.05
-2.25 + 1 3/10 = -0.95
-2.25 + 1 4/10 = -0.85
-2.25 + 1 5/10 = -0.75
-2.25 + 1 6/10 = -0.65
-2.25 + 1 7/10 = -0.55
-2.25 + 1 8/10 = -0.45
-2.25 + 1 9/10 = -0.35
-2.25 + 1 8/9 = -0.361111111
-2.25 + 1 7/8 = -0.375
(-2.25) + 1 6/7 = -0.392857143
(-2.25) + 1 5/6 = -0.416666667
(-2.25) + 1 4/5 = -0.45
(-2.25) + 1 3/4 = -0.5
(-2.25) + 1 2/4 = -0.75 is the same as 1 5/10 = -2.25 + 1/2 = -0.75
(-2.25) + 1 2/3 = -0.583333333 - 0.47222222
(-2.25) + 1 7/9 =-0.472222222 1 7/9 is smaller number than 1 2/3 by 0.10555555
We know 1 7/9 it is smaller than 1 8/9 as -2.25 + 1 8/9 = -0.361111111 but only by -0.111111112
as the difference of 1/9 = -0.111111112
etc etc.
Summary when adding additional 1/10 it adds 0.1
when adding additional 1/9 it adds 0.111111112
when adding additional 1/8 it adds 0.125
when adding additional 1/7 it adds 0.142857143
when adding additional 1/6 it adds 0.166666667
when adding additional 1/5 it adds 0.2
when adding additional 1/4 it adds 0.25
when adding additional 1/3 it adds 0.333332224
when adding additional 1/2 it adds 0.5
when adding additional 10/2 it adds 5 etc etc.
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