解:7/10+1/6等于( 13/15 ) ∵已知需求出7/10+1/6等于多少 X + Y = Z ∴7/10 + 1/6 = (7×3)/(10×3)+(1×5)/(6×5) = 21/30 + 5/30 = (21+5)/30 = 26/30 = 13/15 答:7/10+1/6等于13/15