Răspuns:
Explicație pas cu pas:
3
Ana 5/6 * 2/3 = 10/18 = 5/9
Nadia 5/6 : 2/3 = 5/6 * 3/2 = 15/12=5/4
5 / 9 mai mic decat 5/4
5/6 mai mare decat 5/9
5 / 6 mai mic decat 5/4
2
a. 12/25*20/27:16/15= 16/35*15/16=15/35=3/7
b.(5/8+1/12):34/27=(15/24+2/24)*27/34=17/24*27/34=9/16
c. 12/11*33/30-10/9:20/2=6/5-10/9*21/20=6/5-7/6=36/30-35/30=1/30
d. (4/15-3/20):49/30=(16/60-9/60)*30/49=7/60*30/49=1/14
e) 14/15:10/21*45/16=14/15*21/10*45/16=
