7/12-(1/4). first you need a common denominator which is 12. in the first fraction we already have a 12, so we don't need to multiply times anything, but the second fraction already has a 4, so what times 4 is 12, 3.
a place along a road, border, etc., where travelers are stopped for inspection. 2. a point or item, especially in a procedure, for notation, inspection, or confirmation. Origin of checkpoint. 1935-1940.
Urban population refers to the citizens who live in the city. Urbanization is the 'building' of a town or city. To urbanize, urbanism, urbanistic, urbanity, urbane. In Spanish 'guardia urbano' means 'city policeman'.