1.(1/4四分之一)-(-2/3)除以(+3/4)+(-1)除以(+2/3)
=1/4+8/9-3/2
=-13/36
2.(2右1/2)除以(-10)乘(3右1/3)除以(-5)
=(-1/4)乘(3右1/3)除以(-5)
=(-5/6)除以(-5)
=1/6
1.(1/4四分之一)-(-2/3)除以(+3/4)+(-1)除以(+2/3)
=1/4+8/9-3/2
=-13/36
2.(2右1/2)除以(-10)乘(3右1/3)除以(-5)
=(-1/4)乘(3右1/3)除以(-5)
=(-5/6)除以(-5)
=1/6