简便算:【0.3+(2又2⼀3-1.25)除以2又5⼀6】*1又3⼀4

2024-12-02 14:38:07
推荐回答(2个)
回答(1):

【0.3+(2又2/3-1.25)除以2又5/6】*1又3/4
= 【0.3+(2+2/3-5/4)÷ (2+5/6)】*(1+3/4)
= 【3/10+(2+2/3-5/4)÷ (17/6)】* 7/4
= 【3/10+(17/12)* (6/17)】* 7/4
= (3/10+ 1/2 )* 7/4
= (3/10+ 5/10 )* 7/4
= 8/10 * 7/4
= 7/5

回答(2):

7/5