8⼀13÷7+1⼀7x15⼀13怎样简算?

2024-11-16 22:31:39
推荐回答(2个)
回答1:

8/13÷7+1/7x15/13
=8/13x1/7+1/7x15/13
=(8/13+15/13)x1/7
=23/13x1/7
=23/91

回答2:

=8/13×1/7+1/7×15/13
=1/7×(8/13+15/13)
=1/7×23/13
=23/91