140 |
35 |
=(140÷35):(35÷35),
=4:1;
140 |
35 |
(2)0.4:
2 |
3 |
=
2 |
5 |
2 |
3 |
=(
2 |
5 |
15 |
2 |
2 |
3 |
15 |
2 |
=3:5;
0.4:
2 |
3 |
2 |
3 |
=0.4×
3 |
2 |
=0.6;
(3)0.3噸:150千克,
=300:150,
=(300÷150):(150÷150),
=2:1;
0.3噸:150千克,
=300:150,
=300÷150,
=2;
(4)0.6:
2 |
3 |
=
3 |
5 |
2 |
3 |
=(
3 |
5 |
2 |
3 |
=9:10;
0.6:
2 |
3 |
=0.6÷
2 |
3 |
=0.6×
3 |
2 |
=0.9.