Question

12分之25-7分之5÷6分之5-7分之1怎么算？

Answer 1

25/12-5/7÷5/6-1/7
=25/12-5/7×6/5-1/7
=25/12-6/7-1/7
=25/12-(6/7+1/7)
=25/12-1
=25/12-12/12
=13/12