Răspuns :
a) 3/5 * 1/2 = (3*1)/(5*2) = 3/10
b) 2 1/3 = (2*3+1)/3 = 7/3
7/3 * 5/7 = 35/21 = 5/7
c) 1 1/5 = (1*5+1)/5 = 6/5
3 1/4 = (3*4+1)/4 = 13/4
13/4 * 6/5 = 39/10
a) 3/5 * 1/2 = (3*1)/(5*2) = 3/10
b) 2 1/3 = (2*3+1)/3 = 7/3
7/3 * 5/7 = 35/21 = 5/7
c) 1 1/5 = (1*5+1)/5 = 6/5
3 1/4 = (3*4+1)/4 = 13/4
13/4 * 6/5 = 39/10