(1)3⼀8-1⼀15X3⼀8 请问简便计算怎么写?请用分数回答。

2025-01-04 02:28:06
推荐回答(1个)
回答1:

1 * 3/8 - 1/15 * 3/8
= 1 - 1/15 ) * 3/8
= 14/15 * 3/8
= 7/20

2)
7/25 * 3/5 * 1000
= 7 * 40 * 3/5
= 7 * 8 * 3
= 168 (kg)