1 10 2·3+1 7 35
a)5·2---= ---- sau 5·--------= 5· -----= ------
3 3 3 3 3
b) 7·3/1·1/4=21/4 sau 7·(3·4+1)/ 4=7·13/4=91/4
c) 8/1·1/3·5=40/3 sau 25/3·5=125/3
d) 3·3/2·5=45/3 sau 9/2·5=45/2
e) 4·1/5·3=12/5 sau 21/5·3=63/5
f) 2· 1/7·6=12/7 sau 15/7·6=90/7
g) 5·2/5·4=40/5 sau 27/5·4=108/5
h) 3·3/4·3=27/4 sau 15/4·3=45/4
15/4 am introdus intregii in fractie adica 3x4+3=15/4
