Răspuns:
2/3·5=10/3
5/7·3=15/7
4·3/8=12/8=3/2
6·5/9=30/9=10/3
9·7/6=63/6=21/2
2·7/8=14/8=7/4
________
3/2·3/5=9/10
2/7·8/5=16/35
4/5·7/3=28/15
8/3·5/7=40/21
5/9·7/2=35/18
8/5·4/9=32/45
1 . b. 15/7
c. 3/2
d.10/3
e.21/2
f.7/4
2. a. 9/10
b. 16/35
c. 28/15
d.40/21
e.35/18
f. 32/45
