(6⼀7÷(1⼀3)+1⼀5)×4⼀15怎样列简便计算?

2024-11-17 10:44:46
推荐回答(1个)
回答(1):

(6/7÷1/3+1/5)×4/15
=18/7×4/15+1/5×4/15
=24/35+4/75
=(24×15+4×7)/525
=388/525