Question

3分之11×（3分之1-2分之一）×11 分之3÷4分之5

Answer 1

原式=1*（3分之1-2分之1）*5分之4
=1*（-6分之1）*5分之4
=-6分之1*5分之4
=-15分之2

Answer 2

11/3×﹙1/3-1/2﹚×3/11÷5/4
=11/3×（-1/6）×3/11×4/5
=11/3×3/11×（-1/6）×4/5
=1×（-1/6）×4/5
=-1/6×4/5
=-2/15
希望能帮到您！