7分之5减2分之一除于28分之3减1.75等于多少?

2024-10-30 22:23:29
推荐回答(2个)
回答1:

5/7-1/2÷3/28-1.75

=5/7-1/2x28/3-1.75

=5/7-14/3-7/4

=60/84-392/84-147/84

=(60-392-147)/84

=-479/84

回答2:

5/7-1/2÷3/28-1.75
=5/7-14/3-1.75
=-83/21-1.75
=-5.702381