11×37.5%+6÷8\3－0.375 用递等式计算8:20之前要,好人帮个忙,谢谢!~~~~

11×37.5%+6÷8\3－0.375 用递等式计算8:20之前要,好人帮个忙,谢谢!~~~~
11×37.5%+6÷8\3－0.375 用递等式计算
8:20之前要,好人帮个忙,谢谢!~~~~

11×37.5%+6÷8\3－0.375 用递等式计算8:20之前要,好人帮个忙,谢谢!~~~~
11×37.5%+6÷8\3－0.375
＝11x3/8+6x3/8-1/8
=1/8(33+18-1)
=50/8
=25/4

1×37.5%+6÷8\3－0.375