更新时间2022-05-24 07:22:34
7/8+5/12-5/811/12-5/6+3/83/4-(5/6-1/4)亲们求解答,谢谢各位!【以上题目来自《南方新课堂金牌学案五年级数学下册人教版》,在广东上学的,应该都做过这一本练习册。】
7/8+5/12-5/8
=(7/8-5/8)+5/12
=1/4+5/12
=(3+5)/12
=8/12
=2/3
11/12-5/6+3/8
=(22-20+9)/24
=11/24
3/4-(5/6-1/4)
=3/4-5/6+1/4
=1-5/6
=1/6
7/8+5/12-5/8
=7/8-5/8+5/12
=2/8+5/12
=1/4+5/12
=3/12+5/12
=8/12
=2/3
//
11/12-5/6+3/8
=11/12-10/12+3/8
=1/12+3/8
=2/24+9/24
=11/24
//
3/4-(5/6-1/4)
=3/4-5/6+1/4
=3/4+1/4-5/6
=1-5/6
=1/6