把0.7:1/4化成最简整数比是 _ ,4/5吨:600千克的比值是 _ .

问题描述:

把0.7:

1
4
化成最简整数比是 ___ ,
4
5
吨:600千克的比值是 ___ .

(1)0.7:

1
4

=(0.7×10):(
1
4
×10),
=7:
5
2

=(7×2):(
5
2
×2),
=14:5;
(2)
4
5
吨:600千克,
=800千克:600千克,
=800÷600,
=
4
3

故答案为:14:5;
4
3