(4⼀9 2⼀15)÷2⼀15可以用简算吗?

2024-11-15 17:51:05
推荐回答(1个)
回答1:

(4/9+ 2/15)÷2/15
=(4/9+ 2/15)×15/2
=4/9×15/2+2/15×15/2
=10/3+1
=13/3