va rog am nevoie de un raspuns cat mai repede dau coroana
![Va Rog Am Nevoie De Un Raspuns Cat Mai Repede Dau Coroana class=](https://ro-static.z-dn.net/files/dea/ee7e4dd4ace13af64422a737cde580b7.jpg)
Răspuns:
3/4+5/4=8/4=2
6/7
20/6=10/3
27/17
24/15=8/5
9(9+1):2/5=90:2/5=9
20(20+1):2/7=10*21/7=30
2/15(1+2+3+..25)=2/15*25*26/2=2/15*25*13=130/3
3/8(1+2+3+.....16)=3/8*16*17/2=51
Explicație pas cu pas: