[2又三分之一+(5.4-2又三分之二)×1又三分之二】÷3又九分之四 用简便方法计算!!!!急!!!!!!!!

2024-12-04 13:41:54
推荐回答(2个)
回答1:

[ 2 + 1/3 + (5.4 - 2 - 2/3) × 5/3 ] ÷ (31/9)
= [ 7/3 + 41/9 ] ÷ (31/9)
= 21/31 + 41/31
= 62/31
= 2

回答2:

72