解:144除以12等于( 12 ) ∵已知需求出144除以12等于几 X ÷ Y = X / Y = (X×2)/(Y×2)= Z ∴144除以12 = 144 ÷ 12 = 144 × 1/12 = 144/12 = (12×12)/12 = 12 答:144除以12等于12