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简便运算23/22×21-23÷22/211/4÷7+1/7×3/4+6/711/13÷[（5/8+3/14）÷5/8]
题目详情
简便运算
23/22×21-23÷22/21
1/4÷7+1/7×3/4+6/7
11/13÷[（5/8+3/14）÷5/8]
23/22×21-23÷22/21
1/4÷7+1/7×3/4+6/7
11/13÷[（5/8+3/14）÷5/8]
▼优质解答
答案和解析
23/22*21-23/22/21
=23/462-23/22/21
=23/(462-22)/21
=23/440/21
=
=23/462-23/22/21
=23/(462-22)/21
=23/440/21
=
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