1⼀3÷括号里2⼀3-2⼀5括起来乘3⼀5怎么简便

1/3÷括号里2/3-2/5括起来乘3/5怎么简便
2024-12-18 23:09:16
推荐回答(1个)
回答1:

解: 1/3÷(2/3-2/5)*3/5
=1/3÷(10/15-6/15)*3/5
=1/3÷ 4/15*3/5
=1/3 * 15/4 *3/5
=5/4*3/5
=3/4