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.
the line or relatively narrow space that marks the outer limit of something soldiers guarding the perimeter of the camp Synonyms borderline, bound, boundary, brim, circumference, compass, confines, edge, edging, end, frame, fringe, hem, margin, border, periphery, rim, skirt, skirting, vergeRelated Words ambit; brink, crest, curb, cusp, lip; ceiling ...