Ex 1 dau coroana daca imi raspundeti in mai putin de 20 minute

Ex 1 Dau Coroana Daca Imi Raspundeti In Mai Putin De 20 Minute class=

Răspuns :

4/6=8/12=12/16=16/24=20/30=24/36
3/8=6/16=9/24=12/32=15/40=18/48
5/7=10/14=15/21=20/28=25/35=30/42