1除以4分之3减4分之3除以1等于?
问题描述:
1除以4分之3减4分之3除以1等于?
A.0
B.1
C.12分之7
答
1 / (3/4) - 3/4/1
= 4/3 - 3/4
= 16/12 - 9/12
= 7/12
选 C