Răspuns:
Explicație pas cu pas:
g)
12/5 : 3 = 12/5 x 1/3 = 4/5
h)
625/15 : 25/18 = 625/15 x 18/25 = 25/15 x 18/1 = 5/3 x 18/1 = 5/1 x 6/1 = 30
i)
77/27 : 33/12 = 77/27 x 12/33 = 7/27 x 12/3 = 7/27 x 4/1 = 28/27
k)
10 : 5/4 = 10 x 4/5 = 2 x 4 = 8
l)
72/10 : 18/25 = 72/10 x 25/18 = 4/10 x 25/1 = 2/5 x 25/1 = 2/1 x 5/1 = 10
m)
3/100 : 30/25 = 3/100 x 25/30 = 1/100 x 25/10 = 1/4 x 1/10 = 1/40
p)
400/32 : 100/24 = 400/32 x 24/100 = 4/32 x 24/1 = 1/8 x 24/1 = 24/8 = 3
____________________
a)
3/7 : 4/3 : 9/14 = 3/7 x 3/4 : 9/14 = 9/28 : 9/14 = 9/28 x 14/9 = 1/2
c)
2/5 : (3/7 : 4/3) = 2/5 : (3/7 x 3/4) = 2/5 : 9/28 = 2/5 x 28/9 = 56/45
