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.
See all translations. uk â /ÉbËstrÊk.ÊÉn/ us â /ÉbËstrÊk.ÊÉn/. âº [ C or U ] something that blocks a road, passage, entrance, etc. so that nothing can go along it, or the act of blocking something in this way: There's some kind of obstruction on the railway tracks.