8分之7减9分之7等于多少?

2025-02-27 15:59:33
推荐回答(4个)
回答1:

=63/72-56/72
=7/72

回答2:

7/8-7/9=63/72-56/72=7/72

回答3:

=72分之63-72分之56
=72分之7

回答4:

7/8-7/9
=7×(1/8-1/9)
=7×1/72
=7/72