Răspuns:
Explicație pas cu pas:
a) 1/2*4/5*15/2 = 3
b) 4/21*7/2*3/5 = 4*21/21*10 = 4/10 = 2/5
c) 3/4*2/33*7/3 = 7/2*33 = 7/66
d) 24/15*5/6*3/2 = 24*15/15*12 = 2
