2⼀3+(4⼀7+1⼀2)×9⼀25 咋算啊

2025-04-17 01:04:48
推荐回答(5个)
回答(1):

2/3+(8/14+7/14)*9/25= 2/3+15/14 * 9/25 = 2/3+ 135/350 = 2/3 + 27/70 =140/210 + 81/210=221/210 = 1.05238

回答(2):

按顺序使劲算,没有简便算法

回答(3):

=2/3+15/14x9/25

=2/3+27/70
=47/30

回答(4):

=2/3+15/14 *9/25=2/3+27/70=66/35

回答(5):

1又210分之11