列式计算:(1)[1又2⼀3-(1⼀3-1⼀6+5⼀12)×2.4]÷5 (2)(-3)눀-(1又1⼀2)的三次方×2⼀9-6÷

2024-11-26 17:51:53
推荐回答(1个)
回答1:

(1)【1又2/3-(1/6+5/12)x2.4】÷5
=【1又2/3-7/12x2.4】÷5
=【1又2/3-7/5】÷5
=4/15÷5
=4/75