(5分之3-2分之1-12分之7)乘以(60乘以7分之3-60乘以7分之1+60乘以7分之5)
=(5分之3-2分之1-12分之7)乘以[60乘以(7分之3-7分之1+7分之5)]
=(5分之3-2分之1-12分之7)乘以60
= 36-30-35
= -29
(5分之3-2分之1-12分之7)乘以(60乘以7分之3-60乘以7分之1+60乘以7分之5)
=(5分之3-2分之1-12分之7)乘以[60乘以(7分之3-7分之1+7分之5)]
=(5分之3-2分之1-12分之7)乘以60
= 36-30-35
= -29