（-0.25）乘（-1又5/9）乘（-36）

①
(-0.25)×(-1又5/9)×(-36)
=(-1/4)×[-(9+5)/9]×(-36)
=(-1/4)×(-14/9)×(-36)
=(-1/4)×14×4
=-14
②
-2/3×(-1/2)×(6又2/3)×(1又4/5)
=1/3×[(3×6+2)/3]×[(5+4)/5]
=1/3×20/3×9/5
=20/9×9/5
=4