3⼀5×2⼀3+0.6×1⼀3怎么用简便方法算?

2025-01-03 22:45:32
推荐回答(1个)
回答1:

0.6=3/5
原式=3/5×2/3+3/5×1/3
=3/5×(2/3+1/3)
=3/5×1
=3/5