1 and 19/20
There is a variance in US block measurements. 15 to 20 blocks per mile in different parts of the country, so..................... 11.82 miles (20 blocks/1 mile) = 236.4 blocks ------------------- 11.82 miles (15 blocks/1 mile) 177.3 blocks ---------------- so, you have that much variance to consider for your answer
4/20 + 15/20 = 19/20
1, 3, 5, 7, 9, 11, 13, 15, 17, 19. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19.
Subtract a negative 1. 19 - (-1) = 20
1
1 and 19/20
There is a variance in US block measurements. 15 to 20 blocks per mile in different parts of the country, so..................... 11.82 miles (20 blocks/1 mile) = 236.4 blocks ------------------- 11.82 miles (15 blocks/1 mile) 177.3 blocks ---------------- so, you have that much variance to consider for your answer
8,18,28,38,48,58,68,78,80,81,82,83,84,85,86,87,88,89,98
4/20 + 15/20 = 19/20
21
1, 19 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
-- The least common factor of any group of whole numbers is always ' 1 '.-- The greatest common factor of 15, 19, and 20 also happens to be ' 1 '.
19 + 1 = 20
1, 3, 5, 7, 9, 11, 13, 15, 17, 19. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19. 1, 3, 5, 7, 9, 11, 13, 15, 17, 19.
Subtract a negative 1. 19 - (-1) = 20
20 - 19 = 1