有一堆煤,永用去3⼀4后,还剩下5⼀8t.这堆煤原来有多少t

2025-12-18 04:18:46
推荐回答(2个)
回答1:

有一堆煤,用去3/4后,还剩下5/8t.这堆煤原来有多少t?
5/8÷(1-3/4)
=5/8÷1/4
=2.5吨

回答2:

5/8÷(1-3/4)
=5/8÷1/4
=5/8x4
=5/2