解:1/6+1/4等于( 5/12 ) ∵已知需求出1/6+1/4等于多少 X + Y = Z ∴1/6 + 1/4 = (1×2)/(6×2)+(粗颤1×3)/弊凳盯(4×3) = 2/12 + 3/12 = (2+3)/12 = 5/租和12 答:1/6+1/4等于5/12