3分之2+(6分之5一4分之3等于多少。
3分之2+(6分之5一4分之3)
=8/12+10/12-9/12
=18/12-9/12
=9/12
=3/4
3分之2+(6分之5一4分之3
=8/12+10/12-9/12
=18/12-9/12
=9/12
=3/4
3分之2+(6分之5-4分之3)等于4分之3
解:2/3+(5/6-3/4)
=2/3+5/6-3/4
=4/6+5/6-3/4
=3/2-3/4
=6/4-3/4
=3/4
3分之2+(6分之5一4分之3)
=2/3+5/6-3/4
=8/12+10/12-9/12
=8/12+1/12
=9/12
=3/4
6-(3/4-2/5) =6-7/20 =113/20 =5又20分之13