va roooooog dau coroana cu tot cu rezolvari

Răspuns:
5/1x7/10=1/1x7/2=3 1/2
4/1x5/2=2/1x5/1=10/1=10
9/1x5/18=1/1x5/2=2 1/2
9/1x4/21=1/1x4/3=1 1/3
10/1x2/15=2/1x2/3=4/3=1 1/3