Question

5/12-(5/25-1/12)次等于多少？

Answer 1

5/12-(5/25-1/12）分数计算
解题思路：四则运算规则（按顺序计算、先算乘除后算加减，有括号先算括号，有乘方先算乘方）即脱式运算（递等式计算）需在该原则前提下进行
解题过程：

5/12-(5/25-1/12）

=5/12+1/12-5/25

=1/2-5/25

=25/50-10/25
=3/10

存疑请追问，满意请采纳

Answer 2

去括号后计算
5/12-(5/25-1/12）
=5/12-1/5+1/12
=5/12+1/12-1/5
=6/12-1/5
=1/2-1/5
=5/10-2/10
=3/10

Answer 3

＝5/12-5/25+1/12
=6/12-5/25
=1/2-1/5
=0.5-0.2
=0.3

Answer 4

5/12-(5/25-1/12)
=5/12+1/12-5/25
=6/12-5/25
=1/2-5/25
=25/50-10/50
=15/50
=3/10