Răspuns:
D:I=C I=C D<50
1:1=1
4:2=2 (5:2=2 rest 1)
9:3=3 (10:3=3 rest 1, 11:3=3 rest 2)
16:4=4 (17:4=4 rest 1, 18:4=4 rest 2, 19:4=4 rest 3)
25:5=5 (26:5=5 rest 1, 27:5=5 rest 2, 28:5=5 rest 3, 29:5=5 rest 4)
36:6=6 (37:6=6 rest 1, 38:6=6 rest 2, 39:6=6 rest 3, 40:6=6 rest 4, 41:6=6 rest 5)
49:7=7
Explicație pas cu pas: