1除以4分之3减4分之3除以1等于?A.0B.1C.12分之7
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
C
1÷3/4-3/4÷1
=1×4/3-3/4
=4/3-3/4
=16/12-9/12
=7/12
答
也就是三分之四减四分之三,等于十二分之七,选C
答
1 / (3/4) - 3/4/1
= 4/3 - 3/4
= 16/12 - 9/12
= 7/12
选 C