45/171 - 9/171 = 36/171
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To get 5 using the numbers 19, 2, 6, and 3, you can subtract 6 from 19 to get 13, then subtract 3 from 13 to get 10, and finally subtract 2 from 10 to get 8. So, you cannot get 5 using these specific numbers.
OK, SO 24 - 5 is 19, but how you get there is you count down so 24, 23, 22, 21, 20, 19. You can also do it by setting up a problem:24- 5____OK,SO You can't subtract 5 from 4 and get a positive number, you would get -1. So you borrow. Subtract 1 from the 2 in the tens place and bring that ten to the 4 temporarily to get 14. Then subtract 5 from 14, so 13, 12, 11, 10, 9 and put a 9 under than column. Then, subtract that one from 2 that you took, and your answer is 19! Hope this helps!
5/9-1/3 is the same as 5/9-3/9. This would then subtract out to be 2/9. (2 over 9)
Assuming you include the endpoints (9 and 19, in this case), the calculation you must do is:19 - 9 + 1 If you don't subtract the endpoints (the question would be phrased something like "... between 9 and 19"), you have to subtract one instead of adding one, at the end.
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