旋风少女吧七号夫妇:简便运算题

来源:百度文库 编辑:高考问答 时间:2024/05/10 20:01:06
24*5/36-3/8
=
=

要简便哦
我还是不懂啊?

24*5/36-3/8
= 24*(5/36)-3/8 ( 24与(1*5)/36约分=(2*5)/3 )
= (2*5)/3-3/8
=10/3-3/8
=80/24-9/24 ( 3*8=24 )
=71/24

24*5/36-3/8
=24/36*5-3/8
=10/3-3/8
=1有24分子23

24*5/36-3/8
=6*5/9-3/8
=2*5/3-3/8
=(16*8-3*3)/3*8
=119/24

24*5/36-3/8
= 24*(5/36)-3/8 ( 24与(1*5)/36约分=(2*5)/3 )
= (2*5)/3-3/8
=10/3-3/8
=80/24-9/24 ( 3*8=24 )
=71/24